NPM-related updates (#278)

Author: AlekseyMartynov

.npmignore

@@ -1,5 +1,4 @@
 *
-!.gitignore
 !js/*
 !LICENSE
 !README.md

appveyor.yml

@@ -6,6 +6,7 @@ environment:
 
 install:
   - ps: Install-Product node 8
+  - npm i -g npm@5
   - if defined RELEASE_KEY_SECRET (nuget install secure-file -ExcludeVersion -Verbosity quiet && secure-file\tools\secure-file -decrypt net\DevExtreme.AspNet.Data\release.snk.enc -secret %RELEASE_KEY_SECRET%)
   - nuget install -Verbosity quiet -ExcludeVersion -OutputDirectory . OpenCover
   - pip install -q codecov

package.json

@@ -22,22 +22,23 @@
     "bluebird": "^3.5.1",
     "eclint": "^2.0.1",
     "jquery": "^3.3.1",
-    "jshint": "^2.9.2",
-    "karma": "^1.3.0",
+    "jshint": "2.9.5",
+    "karma": "^2.0.0",
     "karma-chrome-launcher": "^2.2.0",
     "karma-coverage": "^1.1.1",
     "karma-ie-launcher": "^1.0.0",
-    "karma-qunit": "^1.2.1",
-    "qunitjs": "^2.1.1",
+    "karma-qunit": "^2.0.0",
+    "qunit": "^2.0.0",
     "typescript": "^2.0.10",
-    "webpack": "^1.14.0",
+    "webpack": "^4.0.0",
+    "webpack-cli": "^3.0.0",
     "xhr-mock": "^2.3.1"
   },
   "scripts": {
     "karma": "cd js-test && karma start",
-    "karma-bundled": "cd js-test && webpack --define ASPNET_DATA_SCRIPT='../js/dx.aspnet.data.js' test.js test-bundle.js && karma start --bundled",
-    "karma-bundled-nojquery": "cd js-test && webpack --define ASPNET_DATA_SCRIPT='../js-nojquery/index.js' test.js test-bundle.js && karma start --bundled",
-    "karma-bundled-nojquery-cjs": "cd js-test && webpack --define ASPNET_DATA_SCRIPT='../js-nojquery/index.js' --define define=false test.js test-bundle.js && karma start --bundled",
+    "karma-bundled": "cd js-test && webpack --mode=development --define ASPNET_DATA_SCRIPT='../js/dx.aspnet.data.js' test.js -o test-bundle.js && karma start --bundled",
+    "karma-bundled-nojquery": "cd js-test && webpack --mode=development --define ASPNET_DATA_SCRIPT='../js-nojquery/index.js' test.js -o test-bundle.js && karma start --bundled",
+    "karma-bundled-nojquery-cjs": "cd js-test && webpack --mode=development --define ASPNET_DATA_SCRIPT='../js-nojquery/index.js' --define define=false test.js -o test-bundle.js && karma start --bundled",
     "dts": "cd js-test && tsc check-ts-compilation.ts && tsc check-ts-compilation.nojquery.ts",
     "jshint": "jshint --verbose js js-nojquery",
     "eclint": "eclint check *.{yml,json} {net,js,js-test}/**/*.{cs,js,ts,html,json,cshtml,tt} !net/**/{bin,obj}/** !net/docfx/build/** !js-test/test-bundle.js !net/Sample/{node_modules,wwwroot/lib}/**"