Webpack update to v4 + ie11 polyfills (SSENSE#266)

* Update dependencies + babelrc file and move some devDeps to deps

* Update config to v4 webpack

* Back to using only built in banner webpack plugin

* Update docs files after build command

* Update tests snapshots after upgrade jest package + update config

* Update lib after build command

* Remove ignored file from repo

* Move to yarn due to npm run dev problems and no problems with yarn + change commends to yarn + add yarn.lock file

* Update travic.yml config

* Back to npm run than yarn in packege.json scripts

* Add new end lines

* Add new .gitignore file

* Update dependencies from beta to stable version + update lock file + config and adjust one import

* Move config from babelrc file to webpack config + browserslistrc config file

* Repair tests and remove unused libs to JEST

* Add build files

Author: kjugi

.babelrc

@@ -0,0 +1,2 @@
+last 2 versions
+IE 11

.browserslistrc

@@ -1,8 +1,52 @@
-.DS_Store
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# nyc test coverage
+.nyc_output
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
 node_modules/
-npm-debug.log
-coverage/
-/node_modules
-/.idea
+jspm_packages/
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
 .env
-.yarn-error.log
+
+# parcel-bundler cache (https://parceljs.org/)
+.cache
+
+# vuepress build output
+.vuepress/dist

.gitignore

@@ -1,9 +1,9 @@
 language: node_js
 
-script: npm run test-coverage
+script: yarn test-coverage
 
 after_script:
-  - npm run coveralls
+  - yarn coveralls
 
 node_js:
-  - "6.9"
+  - "8.11.4"