Add selective ESLint rule activation for Horizon Legacy JS

This patch adds the files for eslint overrides in the two different
segments of horizon's codebase: Legacy and Dashboard. There are
quite a few rules that had to be deactivated, which will reduce
the effectiveness of legacy linting.

Note: You cannot disable plugins in .eslintrc files, you can
only enable them. This is why there appear to be two redundant
.eslintrc files that enable the angular rules.

Change-Id: I5768cbc43e788a4320a6bb637c263dc3c3df3db9
Partially-Implements: blueprint jscs-cleanup

.eslintrc

@@ -4,10 +4,6 @@
 # By default, ESLint uses Espree as its parser.
 parser: espree
 
-# Enable eslint-plugin-angular
-plugins:
-  - angular
-
 # Set up globals
 globals:
   angular: false
@@ -786,7 +782,7 @@ rules:
   # specify the maximum length of a line in your program
   # http://eslint.org/docs/rules/max-len
   max-len:
-    - 2 # TODO(krotscheck): Activate & Fix
+    - 2
     - 100
 
   # Limits the number of parameters that can be used in function declaration.

horizon/static/auth/.eslintrc

@@ -0,0 +1,21 @@
+# ESLint styles for Horizon's Legacy javascript code. These rule overrides exist to enforce an
+# older linting style, to ensure backward compatibility.
+
+rules:
+
+  # Various rules applicable to our new Code Style guidelines were only intermittently enforced
+  # in the legacy code, and were not addressed during the JSCS move. This disables the applicable
+  # rules.
+  camelcase: 0
+  max-len: 0
+  space-before-blocks: 0
+  one-var: 0
+  space-infix-ops: 0
+  space-after-keywords: 0
+  no-console: 0
+  no-multiple-empty-lines: 0
+  no-sync: 0
+  no-process-exit: 0
+  space-unary-ops: 0
+  curly: 0
+  indent: 0

horizon/static/framework/.eslintrc

@@ -0,0 +1,6 @@
+# ESLint styles for this section of horizon's codebase. It activates the John Papa
+# Style plugin for all javascript files in this directory or below.
+
+# Enable eslint-plugin-angular
+plugins:
+  - angular

horizon/static/horizon/.eslintrc

@@ -0,0 +1,21 @@
+# ESLint styles for Horizon's Legacy javascript code. These rule overrides exist to enforce an
+# older linting style, to ensure backward compatibility.
+
+rules:
+
+  # Various rules applicable to our new Code Style guidelines were only intermittently enforced
+  # in the legacy code, and were not addressed during the JSCS move. This disables the applicable
+  # rules.
+  camelcase: 0
+  max-len: 0
+  space-before-blocks: 0
+  one-var: 0
+  space-infix-ops: 0
+  space-after-keywords: 0
+  no-console: 0
+  no-multiple-empty-lines: 0
+  no-sync: 0
+  no-process-exit: 0
+  space-unary-ops: 0
+  curly: 0
+  indent: 0

openstack_dashboard/.eslintrc

@@ -0,0 +1,6 @@
+# ESLint styles for this section of horizon's codebase. It activates the John Papa
+# Style plugin for all javascript files in this directory or below.
+
+# Enable eslint-plugin-angular
+plugins:
+  - angular