Updated dependencies and linted

[n1474335]

The following dependencies were updated:

-    "babel-loader": "^6.4.0",
+    "babel-loader": "^7.1.1",
-    "babel-preset-env": "^1.2.2",
+    "babel-preset-env": "^1.6.0",
-    "css-loader": "^0.27.3",
+    "css-loader": "^0.28.4",
-    "extract-text-webpack-plugin": "^2.1.0",
+    "extract-text-webpack-plugin": "^3.0.0",
-    "file-loader": "^0.10.1",
+    "file-loader": "^0.11.2",
-    "grunt-contrib-clean": "~1.0.0",
+    "grunt-contrib-clean": "~1.1.0",
-    "grunt-eslint": "^19.0.0",
+    "grunt-eslint": "^20.0.0",
-    "grunt-exec": "~1.0.1",
+    "grunt-exec": "~2.0.0",
-    "grunt-webpack": "^2.0.1",
+    "grunt-webpack": "^3.0.2",
-    "html-webpack-plugin": "^2.28.0",
+    "html-webpack-plugin": "^2.29.0",
-    "less-loader": "^4.0.3",
+    "less-loader": "^4.0.5",
-    "style-loader": "^0.15.0",
+    "style-loader": "^0.18.2",
-    "webpack": "^2.2.1"
+    "webpack": "^3.3.0"
-    "diff": "^3.2.0",
+    "diff": "^3.3.0",
-    "esprima": "^3.1.3",
+    "esprima": "^4.0.0",
-    "exif-parser": "^0.1.9",
+    "exif-parser": "^0.1.12",
-    "jsrsasign": "7.1.3",
+    "jsrsasign": "8.0.3",
-    "zlibjs": "^0.2.0"
+    "zlibjs": "^0.3.1"

Due to eslint bug fixes, more lint errors were detected so I've fixed them too.

The jsrsasign API changed a reasonable amount, breaking the X.509 operations. These have now been fixed.