🔧 Ignore automatic files

Minor .gitignore upgrade:
  - Remove duplicated folders
  - Upgrade list of automatically created files that should be ignored
  - Use GitHub Node.js .gitignore template (see https://goo.gl/hx0XE)
  - Also ignore Emacs and VSCode automatic files

.gitignore

@@ -1,6 +1,61 @@
-dist/
-test/coverage/
-node_modules/
-bower_components/
+# Logs
+*.log
+logs
+npm-debug.log*
+
+# Runtime data
+*.pid
+*.pid.lock
+*.seed
+pids
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (http://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+bower_components
+jspm_packages
+node_modules
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Directory used by test tools like Coverage and Grump
+dist
 test/coverage
-.idea
+
+# Emacs
+*~
+.*~
+.\#*
+\#*
+
+# JetBrains WebStorm
+.idea
+
+# Microsoft Visual Studio Code
+.vscode