diff --git a/package-lock.json b/package-lock.json
index c11ed67..2f41781 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1229,14 +1229,14 @@
       "dev": true
     },
     "fsevents": {
-      "version": "1.2.4",
-      "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-1.2.4.tgz",
-      "integrity": "sha512-z8H8/diyk76B7q5wg+Ud0+CqzcAF3mBBI/bA5ne5zrRUUIvNkJY//D3BqyH571KuAC4Nr7Rw7CjWX4r0y9DvNg==",
+      "version": "1.2.8",
+      "resolved": "https://registry.npmjs.org/fsevents/-/fsevents-1.2.8.tgz",
+      "integrity": "sha512-tPvHgPGB7m40CZ68xqFGkKuzN+RnpGmSV+hgeKxhRpbxdqKXUFJGC3yonBOLzQBcJyGpdZFDfCsdOC2KFsXzeA==",
       "dev": true,
       "optional": true,
       "requires": {
-        "nan": "^2.9.2",
-        "node-pre-gyp": "^0.10.0"
+        "nan": "^2.12.1",
+        "node-pre-gyp": "^0.12.0"
       },
       "dependencies": {
         "abbrev": {
@@ -1258,7 +1258,7 @@
           "optional": true
         },
         "are-we-there-yet": {
-          "version": "1.1.4",
+          "version": "1.1.5",
           "bundled": true,
           "dev": true,
           "optional": true,
@@ -1284,7 +1284,7 @@
           }
         },
         "chownr": {
-          "version": "1.0.1",
+          "version": "1.1.1",
           "bundled": true,
           "dev": true,
           "optional": true
@@ -1314,16 +1314,16 @@
           "optional": true
         },
         "debug": {
-          "version": "2.6.9",
+          "version": "4.1.1",
           "bundled": true,
           "dev": true,
           "optional": true,
           "requires": {
-            "ms": "2.0.0"
+            "ms": "^2.1.1"
           }
         },
         "deep-extend": {
-          "version": "0.5.1",
+          "version": "0.6.0",
           "bundled": true,
           "dev": true,
           "optional": true
@@ -1372,7 +1372,7 @@
           }
         },
         "glob": {
-          "version": "7.1.2",
+          "version": "7.1.3",
           "bundled": true,
           "dev": true,
           "optional": true,
@@ -1392,12 +1392,12 @@
           "optional": true
         },
         "iconv-lite": {
-          "version": "0.4.21",
+          "version": "0.4.24",
           "bundled": true,
           "dev": true,
           "optional": true,
           "requires": {
-            "safer-buffer": "^2.1.0"
+            "safer-buffer": ">= 2.1.2 < 3"
           }
         },
         "ignore-walk": {
@@ -1462,17 +1462,17 @@
           "optional": true
         },
         "minipass": {
-          "version": "2.2.4",
+          "version": "2.3.5",
           "bundled": true,
           "dev": true,
           "optional": true,
           "requires": {
-            "safe-buffer": "^5.1.1",
+            "safe-buffer": "^5.1.2",
             "yallist": "^3.0.0"
           }
         },
         "minizlib": {
-          "version": "1.1.0",
+          "version": "1.2.1",
           "bundled": true,
           "dev": true,
           "optional": true,
@@ -1490,35 +1490,35 @@
           }
         },
         "ms": {
-          "version": "2.0.0",
+          "version": "2.1.1",
           "bundled": true,
           "dev": true,
           "optional": true
         },
         "needle": {
-          "version": "2.2.0",
+          "version": "2.3.0",
           "bundled": true,
           "dev": true,
           "optional": true,
           "requires": {
-            "debug": "^2.1.2",
+            "debug": "^4.1.0",
             "iconv-lite": "^0.4.4",
             "sax": "^1.2.4"
           }
         },
         "node-pre-gyp": {
-          "version": "0.10.0",
+          "version": "0.12.0",
           "bundled": true,
           "dev": true,
           "optional": true,
           "requires": {
             "detect-libc": "^1.0.2",
             "mkdirp": "^0.5.1",
-            "needle": "^2.2.0",
+            "needle": "^2.2.1",
             "nopt": "^4.0.1",
             "npm-packlist": "^1.1.6",
             "npmlog": "^4.0.2",
-            "rc": "^1.1.7",
+            "rc": "^1.2.7",
             "rimraf": "^2.6.1",
             "semver": "^5.3.0",
             "tar": "^4"
@@ -1535,13 +1535,13 @@
           }
         },
         "npm-bundled": {
-          "version": "1.0.3",
+          "version": "1.0.6",
           "bundled": true,
           "dev": true,
           "optional": true
         },
         "npm-packlist": {
-          "version": "1.1.10",
+          "version": "1.4.1",
           "bundled": true,
           "dev": true,
           "optional": true,
@@ -1618,12 +1618,12 @@
           "optional": true
         },
         "rc": {
-          "version": "1.2.7",
+          "version": "1.2.8",
           "bundled": true,
           "dev": true,
           "optional": true,
           "requires": {
-            "deep-extend": "^0.5.1",
+            "deep-extend": "^0.6.0",
             "ini": "~1.3.0",
             "minimist": "^1.2.0",
             "strip-json-comments": "~2.0.1"
@@ -1653,16 +1653,16 @@
           }
         },
         "rimraf": {
-          "version": "2.6.2",
+          "version": "2.6.3",
           "bundled": true,
           "dev": true,
           "optional": true,
           "requires": {
-            "glob": "^7.0.5"
+            "glob": "^7.1.3"
           }
         },
         "safe-buffer": {
-          "version": "5.1.1",
+          "version": "5.1.2",
           "bundled": true,
           "dev": true,
           "optional": true
@@ -1680,7 +1680,7 @@
           "optional": true
         },
         "semver": {
-          "version": "5.5.0",
+          "version": "5.7.0",
           "bundled": true,
           "dev": true,
           "optional": true
@@ -1733,17 +1733,17 @@
           "optional": true
         },
         "tar": {
-          "version": "4.4.1",
+          "version": "4.4.8",
           "bundled": true,
           "dev": true,
           "optional": true,
           "requires": {
-            "chownr": "^1.0.1",
+            "chownr": "^1.1.1",
             "fs-minipass": "^1.2.5",
-            "minipass": "^2.2.4",
-            "minizlib": "^1.1.0",
+            "minipass": "^2.3.4",
+            "minizlib": "^1.1.1",
             "mkdirp": "^0.5.0",
-            "safe-buffer": "^5.1.1",
+            "safe-buffer": "^5.1.2",
             "yallist": "^3.0.2"
           }
         },
@@ -1754,12 +1754,12 @@
           "optional": true
         },
         "wide-align": {
-          "version": "1.1.2",
+          "version": "1.1.3",
           "bundled": true,
           "dev": true,
           "optional": true,
           "requires": {
-            "string-width": "^1.0.2"
+            "string-width": "^1.0.2 || 2"
           }
         },
         "wrappy": {
@@ -1769,7 +1769,7 @@
           "optional": true
         },
         "yallist": {
-          "version": "3.0.2",
+          "version": "3.0.3",
           "bundled": true,
           "dev": true,
           "optional": true
@@ -2935,9 +2935,9 @@
       "dev": true
     },
     "nan": {
-      "version": "2.11.1",
-      "resolved": "https://registry.npmjs.org/nan/-/nan-2.11.1.tgz",
-      "integrity": "sha512-iji6k87OSXa0CcrLl9z+ZiYSuR2o+c0bGuNmXdrhTQTakxytAFsC56SArGYoiHlJlFoHSnvmhpceZJaXkVuOtA==",
+      "version": "2.13.2",
+      "resolved": "https://registry.npmjs.org/nan/-/nan-2.13.2.tgz",
+      "integrity": "sha512-TghvYc72wlMGMVMluVo9WRJc0mB8KxxF/gZ4YYFy7V2ZQX9l7rgbPg7vjS9mt6U5HXODVFVI2bOduCzwOMv/lw==",
       "dev": true,
       "optional": true
     },