Adding cluster home screen; cleaning up cluster_state; removing cluster_state service

Original commit: elastic/x-pack-elasticsearch@0dc010a7b7

.eslintrc

@@ -0,0 +1,69 @@
+---
+parser: babel-eslint
+
+env:
+  es6: true
+  amd: true
+  node: true
+  mocha: true
+  browser: true
+
+
+rules:
+  block-scoped-var: 2
+  camelcase: [ 2, { properties: never } ]
+  comma-dangle: 0
+  comma-style: [ 2, last ]
+  consistent-return: 0
+  curly: [ 2, multi-line ]
+  dot-location: [ 2, property ]
+  dot-notation: [ 2, { allowKeywords: true } ]
+  eqeqeq: [ 2, allow-null ]
+  guard-for-in: 2
+  indent: [ 2, 2, { SwitchCase: 1 } ]
+  key-spacing: [ 0, { align: value } ]
+  max-len: [ 2, 140, 2, { ignoreComments: true, ignoreUrls: true } ]
+  new-cap: [ 2, { capIsNewExceptions: [ Private ] } ]
+  no-bitwise: 0
+  no-caller: 2
+  no-cond-assign: 0
+  no-debugger: 2
+  no-empty: 2
+  no-eval: 2
+  no-extend-native: 2
+  no-extra-parens: 0
+  no-irregular-whitespace: 2
+  no-iterator: 2
+  no-loop-func: 2
+  no-multi-spaces: 0
+  no-multi-str: 2
+  no-nested-ternary: 2
+  no-new: 0
+  no-path-concat: 0
+  no-proto: 2
+  no-return-assign: 0
+  no-script-url: 2
+  no-sequences: 2
+  no-shadow: 0
+  no-trailing-spaces: 2
+  no-undef: 2
+  no-underscore-dangle: 0
+  no-unused-expressions: 0
+  no-unused-vars: 0
+  no-use-before-define: [ 2, nofunc ]
+  no-with: 2
+  one-var: [ 2, never ]
+  quotes: [ 2, single ]
+  semi-spacing: [ 2, { before: false, after: true } ]
+  semi: [ 2, always ]
+  space-after-keywords: [ 2, always ]
+  space-before-blocks: [ 2, always ]
+  space-before-function-paren: [ 2, { anonymous: always, named: never } ]
+  space-in-parens: [ 2, never ]
+  space-infix-ops: [ 2, { int32Hint: false } ]
+  space-return-throw-case: [ 2 ]
+  space-unary-ops: [ 2 ]
+  strict: [ 2, never ]
+  valid-typeof: 2
+  wrap-iife: [ 2, outside ]
+  yoda: 0