diff --git a/package-lock.json b/package-lock.json
index 06ca3c7..6f1eb66 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4404,9 +4404,9 @@
       }
     },
     "enjoi": {
-      "version": "6.0.2",
-      "resolved": "https://registry.npmjs.org/enjoi/-/enjoi-6.0.2.tgz",
-      "integrity": "sha512-xnJOQO1NCyRv9AwUnbfm/DLfG/kgaswoBGgesZHpbvvbRNll034VgwpbgFpRP3afnyK5adDy7JhKMOCB6EwOcA==",
+      "version": "6.0.0",
+      "resolved": "https://registry.npmjs.org/enjoi/-/enjoi-6.0.0.tgz",
+      "integrity": "sha512-yX5C5AEhtRPVpav/vWOTk8VyM8gFLL85ijBo93b3lBucMbd3Yd/8cM65IMc5VzvcU8UumTxDP+0JcajksZAe8w==",
       "requires": {
         "@hapi/hoek": "^6.0.0"
       }
@@ -4523,6 +4523,11 @@
         "next-tick": "~1.0.0"
       }
     },
+    "es6-denodeify": {
+      "version": "0.1.5",
+      "resolved": "https://registry.npmjs.org/es6-denodeify/-/es6-denodeify-0.1.5.tgz",
+      "integrity": "sha1-MdTV/pxVA+ElRgQ5MQ4WoqPznB8="
+    },
     "es6-iterator": {
       "version": "2.0.3",
       "resolved": "https://registry.npmjs.org/es6-iterator/-/es6-iterator-2.0.3.tgz",
@@ -5136,6 +5141,11 @@
       "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-1.0.0.tgz",
       "integrity": "sha1-liVqO8l1WV6zbYLpkp0GDYk0Of8="
     },
+    "fast-future": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/fast-future/-/fast-future-1.0.2.tgz",
+      "integrity": "sha1-hDWpqqAteSSNF9cE52JZMB2ZKAo="
+    },
     "fast-glob": {
       "version": "2.2.7",
       "resolved": "https://registry.npmjs.org/fast-glob/-/fast-glob-2.2.7.tgz",
@@ -5572,11 +5582,12 @@
       }
     },
     "fetch-cookie": {
-      "version": "0.10.1",
-      "resolved": "https://registry.npmjs.org/fetch-cookie/-/fetch-cookie-0.10.1.tgz",
-      "integrity": "sha512-beB+VEd4cNeVG1PY+ee74+PkuCQnik78pgLi5Ah/7qdUfov8IctU0vLUbBT8/10Ma5GMBeI4wtxhGrEfKNYs2g==",
+      "version": "0.7.0",
+      "resolved": "https://registry.npmjs.org/fetch-cookie/-/fetch-cookie-0.7.0.tgz",
+      "integrity": "sha512-Mm5pGlT3agW6t71xVM7vMZPIvI7T4FaTuFW4jari6dVzYHFDb3WZZsGpN22r/o3XMdkM0E7sPd1EGeyVbH2Tgg==",
       "requires": {
-        "tough-cookie": "^2.3.3 || ^3.0.1 || ^4.0.0"
+        "es6-denodeify": "^0.1.1",
+        "tough-cookie": "^2.3.1"
       }
     },
     "figures": {
@@ -7379,6 +7390,7 @@
       "version": "6.0.1",
       "resolved": "https://registry.npmjs.org/level/-/level-6.0.1.tgz",
       "integrity": "sha512-psRSqJZCsC/irNhfHzrVZbmPYXDcEYhA5TVNwr+V92jF44rbf86hqGp8fiT702FyiArScYIlPSBTDUASCVNSpw==",
+      "optional": true,
       "requires": {
         "level-js": "^5.0.0",
         "level-packager": "^5.1.0",
@@ -7389,6 +7401,7 @@
           "version": "5.0.2",
           "resolved": "https://registry.npmjs.org/level-js/-/level-js-5.0.2.tgz",
           "integrity": "sha512-SnBIDo2pdO5VXh02ZmtAyPP6/+6YTJg2ibLtl9C34pWvmtMEmRTWpra+qO/hifkUtBTOtfx6S9vLDjBsBK4gRg==",
+          "optional": true,
           "requires": {
             "abstract-leveldown": "~6.2.3",
             "buffer": "^5.5.0",
@@ -7464,6 +7477,34 @@
         }
       }
     },
+    "level-js": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/level-js/-/level-js-4.0.2.tgz",
+      "integrity": "sha512-PeGjZsyMG4O89KHiez1zoMJxStnkM+oBIqgACjoo5PJqFiSUUm3GNod/KcbqN5ktyZa8jkG7I1T0P2u6HN9lIg==",
+      "requires": {
+        "abstract-leveldown": "~6.0.1",
+        "immediate": "~3.2.3",
+        "inherits": "^2.0.3",
+        "ltgt": "^2.1.2",
+        "typedarray-to-buffer": "~3.1.5"
+      },
+      "dependencies": {
+        "abstract-leveldown": {
+          "version": "6.0.3",
+          "resolved": "https://registry.npmjs.org/abstract-leveldown/-/abstract-leveldown-6.0.3.tgz",
+          "integrity": "sha512-jzewKKpZbaYUa6HTThnrl+GrJhzjEAeuc7hTVpZdzg7kupXZFoqQDFwyOwLNbmJKJlmzw8yiipMPkDiuKkT06Q==",
+          "requires": {
+            "level-concat-iterator": "~2.0.0",
+            "xtend": "~4.0.0"
+          }
+        },
+        "immediate": {
+          "version": "3.2.3",
+          "resolved": "https://registry.npmjs.org/immediate/-/immediate-3.2.3.tgz",
+          "integrity": "sha1-0UD6j2FGWb1lQSMwl92qwlzdmRw="
+        }
+      }
+    },
     "level-packager": {
       "version": "5.1.1",
       "resolved": "https://registry.npmjs.org/level-packager/-/level-packager-5.1.1.tgz",
@@ -7500,6 +7541,7 @@
       "version": "5.6.0",
       "resolved": "https://registry.npmjs.org/leveldown/-/leveldown-5.6.0.tgz",
       "integrity": "sha512-iB8O/7Db9lPaITU1aA2txU/cBEXAt4vWwKQRrrWuS6XDgbP4QZGj9BL2aNbwb002atoQ/lIotJkfyzz+ygQnUQ==",
+      "optional": true,
       "requires": {
         "abstract-leveldown": "~6.2.1",
         "napi-macros": "~2.0.0",
@@ -7509,12 +7551,14 @@
         "napi-macros": {
           "version": "2.0.0",
           "resolved": "https://registry.npmjs.org/napi-macros/-/napi-macros-2.0.0.tgz",
-          "integrity": "sha512-A0xLykHtARfueITVDernsAWdtIMbOJgKgcluwENp3AlsKN/PloyO10HtmoqnFAQAcxPkgZN7wdfPfEd0zNGxbg=="
+          "integrity": "sha512-A0xLykHtARfueITVDernsAWdtIMbOJgKgcluwENp3AlsKN/PloyO10HtmoqnFAQAcxPkgZN7wdfPfEd0zNGxbg==",
+          "optional": true
         },
         "node-gyp-build": {
           "version": "4.1.1",
           "resolved": "https://registry.npmjs.org/node-gyp-build/-/node-gyp-build-4.1.1.tgz",
-          "integrity": "sha512-dSq1xmcPDKPZ2EED2S6zw/b9NKsqzXRE6dVr8TVQnI3FJOTteUMuqF3Qqs6LZg+mLGYJWqQzMbIjMtJqTv87nQ=="
+          "integrity": "sha512-dSq1xmcPDKPZ2EED2S6zw/b9NKsqzXRE6dVr8TVQnI3FJOTteUMuqF3Qqs6LZg+mLGYJWqQzMbIjMtJqTv87nQ==",
+          "optional": true
         }
       }
     },
@@ -8171,6 +8215,11 @@
         }
       }
     },
+    "napi-macros": {
+      "version": "1.8.2",
+      "resolved": "https://registry.npmjs.org/napi-macros/-/napi-macros-1.8.2.tgz",
+      "integrity": "sha512-Tr0DNY4RzTaBG2W2m3l7ZtFuJChTH6VZhXVhkGGjF/4cZTt+i8GcM9ozD+30Lmr4mDoZ5Xx34t2o4GJqYWDGcg=="
+    },
     "natural-compare": {
       "version": "1.4.0",
       "resolved": "https://registry.npmjs.org/natural-compare/-/natural-compare-1.4.0.tgz",
@@ -8245,6 +8294,11 @@
       "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.6.0.tgz",
       "integrity": "sha512-8dG4H5ujfvFiqDmVu9fQ5bOHUC15JMjMY/Zumv26oOvvVJjM67KF8koCWIabKQ1GJIa9r2mMZscBq/TbdOcmNA=="
     },
+    "node-gyp-build": {
+      "version": "3.8.0",
+      "resolved": "https://registry.npmjs.org/node-gyp-build/-/node-gyp-build-3.8.0.tgz",
+      "integrity": "sha512-bYbpIHyRqZ7sVWXxGpz8QIRug5JZc/hzZH4GbdT9HTZi6WmKCZ8GLvP8OZ9TTiIBvwPFKgtGrlWQSXDAvYdsPw=="
+    },
     "node-int64": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/node-int64/-/node-int64-0.4.0.tgz",
@@ -8593,6 +8647,11 @@
         "mimic-fn": "^1.0.0"
       }
     },
+    "opencollective-postinstall": {
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/opencollective-postinstall/-/opencollective-postinstall-2.0.3.tgz",
+      "integrity": "sha512-8AV/sCtuzUeTo8gQK5qDZzARrulB3egtLzFgteqB2tcT4Mw7B8Kt7JcDHmltjz6FOAHsvTevk70gZEbhM4ZS9Q=="
+    },
     "optionator": {
       "version": "0.8.2",
       "resolved": "https://registry.npmjs.org/optionator/-/optionator-0.8.2.tgz",
@@ -9355,56 +9414,111 @@
       "dev": true
     },
     "pouchdb": {
-      "version": "7.2.2",
-      "resolved": "https://registry.npmjs.org/pouchdb/-/pouchdb-7.2.2.tgz",
-      "integrity": "sha512-5gf5nw5XH/2H/DJj8b0YkvG9fhA/4Jt6kL0Y8QjtztVjb1y4J19Rg4rG+fUbXu96gsUrlyIvZ3XfM0b4mogGmw==",
+      "version": "7.1.1",
+      "resolved": "https://registry.npmjs.org/pouchdb/-/pouchdb-7.1.1.tgz",
+      "integrity": "sha512-8bXWclixNJZqokvxGHRsG19zehSJiaZaz4dVYlhXhhUctz7gMcNTElHjPBzBdZlKKvt9aFDndmXN1VVE53Co8g==",
       "requires": {
-        "abort-controller": "3.0.0",
         "argsarray": "0.0.1",
-        "buffer-from": "1.1.1",
+        "buffer-from": "1.1.0",
         "clone-buffer": "1.0.0",
         "double-ended-queue": "2.1.0-0",
-        "fetch-cookie": "0.10.1",
-        "immediate": "3.3.0",
-        "inherits": "2.0.4",
-        "level": "6.0.1",
-        "level-codec": "9.0.2",
+        "fetch-cookie": "0.7.0",
+        "immediate": "3.0.6",
+        "inherits": "2.0.3",
+        "level": "5.0.1",
+        "level-codec": "9.0.1",
         "level-write-stream": "1.0.0",
-        "leveldown": "5.6.0",
-        "levelup": "4.4.0",
+        "leveldown": "5.0.2",
+        "levelup": "4.0.2",
         "ltgt": "2.2.1",
-        "node-fetch": "2.6.0",
-        "readable-stream": "1.1.14",
-        "spark-md5": "3.0.1",
-        "through2": "3.0.2",
-        "uuid": "8.1.0",
+        "node-fetch": "2.4.1",
+        "readable-stream": "1.0.33",
+        "spark-md5": "3.0.0",
+        "through2": "3.0.1",
+        "uuid": "3.2.1",
         "vuvuzela": "1.0.3"
       },
       "dependencies": {
-        "immediate": {
-          "version": "3.3.0",
-          "resolved": "https://registry.npmjs.org/immediate/-/immediate-3.3.0.tgz",
-          "integrity": "sha512-HR7EVodfFUdQCTIeySw+WDRFJlPcLOJbXfwwZ7Oom6tjsvZ3bOkCDJHehQC3nxJrv7+f9XecwazynjU8e4Vw3Q=="
+        "abstract-leveldown": {
+          "version": "6.0.3",
+          "resolved": "https://registry.npmjs.org/abstract-leveldown/-/abstract-leveldown-6.0.3.tgz",
+          "integrity": "sha512-jzewKKpZbaYUa6HTThnrl+GrJhzjEAeuc7hTVpZdzg7kupXZFoqQDFwyOwLNbmJKJlmzw8yiipMPkDiuKkT06Q==",
+          "requires": {
+            "level-concat-iterator": "~2.0.0",
+            "xtend": "~4.0.0"
+          }
         },
-        "inherits": {
-          "version": "2.0.4",
-          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
-          "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ=="
+        "buffer-from": {
+          "version": "1.1.0",
+          "resolved": "https://registry.npmjs.org/buffer-from/-/buffer-from-1.1.0.tgz",
+          "integrity": "sha512-c5mRlguI/Pe2dSZmpER62rSCu0ryKmWddzRYsuXc50U2/g8jMOulc31VZMa4mYx31U5xsmSOpDCgH88Vl9cDGQ=="
+        },
+        "deferred-leveldown": {
+          "version": "5.0.1",
+          "resolved": "https://registry.npmjs.org/deferred-leveldown/-/deferred-leveldown-5.0.1.tgz",
+          "integrity": "sha512-BXohsvTedWOLkj2n/TY+yqVlrCWa2Zs8LSxh3uCAgFOru7/pjxKyZAexGa1j83BaKloER4PqUyQ9rGPJLt9bqA==",
+          "requires": {
+            "abstract-leveldown": "~6.0.0",
+            "inherits": "^2.0.3"
+          }
         },
         "isarray": {
           "version": "0.0.1",
           "resolved": "https://registry.npmjs.org/isarray/-/isarray-0.0.1.tgz",
           "integrity": "sha1-ihis/Kmo9Bd+Cav8YDiTmwXR7t8="
         },
+        "level": {
+          "version": "5.0.1",
+          "resolved": "https://registry.npmjs.org/level/-/level-5.0.1.tgz",
+          "integrity": "sha512-wcak5OQeA4rURGacqS62R/xNHjCYnJSQDBOlm4KNUGJVE9bWv2B04TclqReYejN+oD65PzD4FsqeWoI5wNC5Lg==",
+          "requires": {
+            "level-js": "^4.0.0",
+            "level-packager": "^5.0.0",
+            "leveldown": "^5.0.0",
+            "opencollective-postinstall": "^2.0.0"
+          }
+        },
+        "level-codec": {
+          "version": "9.0.1",
+          "resolved": "https://registry.npmjs.org/level-codec/-/level-codec-9.0.1.tgz",
+          "integrity": "sha512-ajFP0kJ+nyq4i6kptSM+mAvJKLOg1X5FiFPtLG9M5gCEZyBmgDi3FkDrvlMkEzrUn1cWxtvVmrvoS4ASyO/q+Q=="
+        },
+        "leveldown": {
+          "version": "5.0.2",
+          "resolved": "https://registry.npmjs.org/leveldown/-/leveldown-5.0.2.tgz",
+          "integrity": "sha512-Ib6ygFYBleS8x2gh3C1AkVsdrUShqXpe6jSTnZ6sRycEXKhqVf+xOSkhgSnjidpPzyv0d95LJVFrYQ4NuXAqHA==",
+          "requires": {
+            "abstract-leveldown": "~6.0.0",
+            "fast-future": "~1.0.2",
+            "napi-macros": "~1.8.1",
+            "node-gyp-build": "~3.8.0"
+          }
+        },
+        "levelup": {
+          "version": "4.0.2",
+          "resolved": "https://registry.npmjs.org/levelup/-/levelup-4.0.2.tgz",
+          "integrity": "sha512-cx9PmLENwbGA3svWBEbeO2HazpOSOYSXH4VA+ahVpYyurvD+SDSfURl29VBY2qgyk+Vfy2dJd71SBRckj/EZVA==",
+          "requires": {
+            "deferred-leveldown": "~5.0.0",
+            "level-errors": "~2.0.0",
+            "level-iterator-stream": "~4.0.0",
+            "xtend": "~4.0.0"
+          }
+        },
         "ltgt": {
           "version": "2.2.1",
           "resolved": "https://registry.npmjs.org/ltgt/-/ltgt-2.2.1.tgz",
           "integrity": "sha1-81ypHEk/e3PaDgdJUwTxezH4fuU="
         },
+        "node-fetch": {
+          "version": "2.4.1",
+          "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-2.4.1.tgz",
+          "integrity": "sha512-P9UbpFK87NyqBZzUuDBDz4f6Yiys8xm8j7ACDbi6usvFm6KItklQUKjeoqTrYS/S1k6I8oaOC2YLLDr/gg26Mw=="
+        },
         "readable-stream": {
-          "version": "1.1.14",
-          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-1.1.14.tgz",
-          "integrity": "sha1-fPTFTvZI44EwhMY23SB54WbAgdk=",
+          "version": "1.0.33",
+          "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-1.0.33.tgz",
+          "integrity": "sha1-OjYN1mwbHX/UcFOJhg7aHQ9hEmw=",
           "requires": {
             "core-util-is": "~1.0.0",
             "inherits": "~2.0.1",
@@ -9417,22 +9531,16 @@
           "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
           "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ=="
         },
-        "spark-md5": {
-          "version": "3.0.1",
-          "resolved": "https://registry.npmjs.org/spark-md5/-/spark-md5-3.0.1.tgz",
-          "integrity": "sha512-0tF3AGSD1ppQeuffsLDIOWlKUd3lS92tFxcsrh5Pe3ZphhnoK+oXIBTzOAThZCiuINZLvpiLH/1VS1/ANEJVig=="
-        },
         "string_decoder": {
           "version": "0.10.31",
           "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-0.10.31.tgz",
           "integrity": "sha1-YuIDvEF2bGwoyfyEMB2rHFMQ+pQ="
         },
         "through2": {
-          "version": "3.0.2",
-          "resolved": "https://registry.npmjs.org/through2/-/through2-3.0.2.tgz",
-          "integrity": "sha512-enaDQ4MUyP2W6ZyT6EsMzqBPZaM/avg8iuo+l2d3QCs0J+6RaqkHV/2/lOwDTueBHeJ/2LG9lrLW3d5rWPucuQ==",
+          "version": "3.0.1",
+          "resolved": "https://registry.npmjs.org/through2/-/through2-3.0.1.tgz",
+          "integrity": "sha512-M96dvTalPT3YbYLaKaCuwu+j06D/8Jfib0o/PxbVt6Amhv3dUAtW6rTV1jPgJSBG83I/e04Y6xkVdVhSRhi0ww==",
           "requires": {
-            "inherits": "^2.0.4",
             "readable-stream": "2 || 3"
           },
           "dependencies": {
@@ -9457,9 +9565,9 @@
           }
         },
         "uuid": {
-          "version": "8.1.0",
-          "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.1.0.tgz",
-          "integrity": "sha512-CI18flHDznR0lq54xBycOVmphdCYnQLKn8abKn7PXUiKUGdEd+/l9LWNJmugXel4hXq7S+RMNl34ecyC9TntWg=="
+          "version": "3.2.1",
+          "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.2.1.tgz",
+          "integrity": "sha512-jZnMwlb9Iku/O3smGWvZhauCf6cvvpKi4BKRiliS3cxnI+Gz9j5MEpTz2UFuXiKPJocb7gnsLHwiS05ige5BEA=="
         }
       }
     },
@@ -11208,8 +11316,7 @@
     "spark-md5": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/spark-md5/-/spark-md5-3.0.0.tgz",
-      "integrity": "sha1-NyIifFTi+vJLHcbZM8wUTm9xv+8=",
-      "optional": true
+      "integrity": "sha1-NyIifFTi+vJLHcbZM8wUTm9xv+8="
     },
     "sparseheatmap": {
       "version": "1.1.1",
@@ -12192,6 +12299,14 @@
         }
       }
     },
+    "typedarray-to-buffer": {
+      "version": "3.1.5",
+      "resolved": "https://registry.npmjs.org/typedarray-to-buffer/-/typedarray-to-buffer-3.1.5.tgz",
+      "integrity": "sha512-zdu8XMNEDepKKR+XYOXAVPtWui0ly0NtohUscw+UmaHiAWT8hrV1rr//H6V+0DvJ3OQ19S979M0laLfX8rm82Q==",
+      "requires": {
+        "is-typedarray": "^1.0.0"
+      }
+    },
     "typescript": {
       "version": "3.5.2",
       "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.5.2.tgz",
diff --git a/package.json b/package.json
index fd38a84..b348256 100644
--- a/package.json
+++ b/package.json
@@ -41,12 +41,12 @@
     "d3-array": "^2.4.0",
     "d3-scale": "^3.2.1",
     "d3-selection": "^1.4.1",
-    "enjoi": "^6.0.2",
+    "enjoi": "6.0.0",
     "hapi-pino": "^6.3.0",
     "jsdom": "^15.2.1",
     "node-fetch": "^2.6.0",
     "pino-noir": "^2.2.1",
-    "pouchdb": "^7.2.2",
+    "pouchdb": "7.1.1",
     "pouchdb-server": "^4.2.0",
     "sparseheatmap": "^1.1.1",
     "svelte": "2.16.1",