Merge branch 'master' into greenkeeper/microtime-3.0.0

package.json

@@ -69,7 +69,7 @@
     "create-react-class": "^15.6.3",
     "cross-env": "^5.2.0",
     "cssnano": "^4.1.4",
-    "electron": "^3.0.2",
+    "electron": "^4.0.0",
     "enzyme": "^3.6.0",
     "enzyme-adapter-react-16": "^1.5.0",
     "eslint": "^5.6.0",
@@ -82,7 +82,7 @@
     "immutable": "^4.0.0-rc.9",
     "istanbul": "next",
     "jquery": "^3.3.1",
-    "karma": "^3.0.0",
+    "karma": "^4.0.0",
     "karma-coverage": "^1.1.2",
     "karma-electron": "^6.0.0",
     "karma-mocha": "^1.3.0",
@@ -93,7 +93,7 @@
     "livescript-loader": "^0.1.6",
     "mathjs": "^5.1.2",
     "microtime": "^3.0.0",
-    "mocha": "^5.2.0",
+    "mocha": "^6.0.0",
     "mocha-logger": "^1.0.6",
     "mocha-webpack": "^2.0.0-beta.0",
     "mockery": "^2.1.0",