build(jenkins): direct adb commands to emulator specifically

Jenkinsfile

@@ -97,20 +97,20 @@ def unitTests(os, nodeVersion, npmVersion, testSuiteBranch) {
 									sh 'rm -f mocha_*.crash'
 								} else {
 									// gather crash reports/tombstones for Android
-									sh 'adb pull /data/tombstones'
+									sh 'adb -e pull /data/tombstones'
 									archiveArtifacts 'tombstones/'
 									sh 'rm -f tombstones/'
 									// wipe tombstones and re-build dir with proper permissions/ownership on emulator
-									sh 'adb shell rm -rf /data/tombstones'
-									sh 'adb shell mkdir -m 771 /data/tombstones'
-									sh 'adb shell chown system:system /data/tombstones'
+									sh 'adb -e shell rm -rf /data/tombstones'
+									sh 'adb -e shell mkdir -m 771 /data/tombstones'
+									sh 'adb -e shell chown system:system /data/tombstones'
 								}
 								throw e
 							} finally {
 								// Kill the emulators!
 								if ('android'.equals(os)) {
-									sh 'adb shell am force-stop com.appcelerator.testApp.testing'
-									sh 'adb uninstall com.appcelerator.testApp.testing'
+									sh 'adb -e shell am force-stop com.appcelerator.testApp.testing'
+									sh 'adb -e uninstall com.appcelerator.testApp.testing'
 									killAndroidEmulators()
 								} // if
 							} // finally