Add some linting rules for the CI (#587)

* enable one-var rule

* enable indent rule

* enable no-multiple-empty-lines rule

* enable no-empty rule

* enable no-trailing-spaces rule

* enable no-extra-semi rule

* add eslint rules to fix block spacing

* enable max-statements-per-line rule

* enable brace-style rule

* fix some spacing issues and add future rules

* add code suggestions

src/components/guide/guide-settings.js

@@ -39,7 +39,8 @@ define(['dialogHelper', 'globalize', 'userSettings', 'layoutManager', 'connectio
 
     function save(context) {
 
-        var i, length;
+        var i;
+        var length;
 
         var chkIndicators = context.querySelectorAll('.chkIndicator');
         for (i = 0, length = chkIndicators.length; i < length; i++) {
@@ -62,7 +63,8 @@ define(['dialogHelper', 'globalize', 'userSettings', 'layoutManager', 'connectio
 
     function load(context) {
 
-        var i, length;
+        var i;
+        var length;
 
         var chkIndicators = context.querySelectorAll('.chkIndicator');
         for (i = 0, length = chkIndicators.length; i < length; i++) {