eslint 4.8.0

ESLint 4.8.0 discovers a lot of error related to formatting. While I
tried to fix as many of them as possible, a portion of them actually go
against our coding style. In such a case, I've disabled the indent rule
which effectively leaves it as it was before ESLint 4.8.0.

Additionally, remove jshint because it's becoming a nuisance with its
lack of understanding of ES2015+.

react/features/feedback/components/FeedbackButton.web.js

@@ -23,6 +23,8 @@ class FeedbackButton extends Component {
          */
         _conference: PropTypes.object,
 
+        dispatch: PropTypes.func,
+
         /**
          * Invoked to obtain translated strings.
          */

react/features/feedback/components/FeedbackDialog.web.js

@@ -12,8 +12,8 @@ import { cancelFeedback, submitFeedback } from '../actions';
 
 declare var interfaceConfig: Object;
 
-const scoreAnimationClass = interfaceConfig.ENABLE_FEEDBACK_ANIMATION
-    ? 'shake-rotate' : '';
+const scoreAnimationClass
+    = interfaceConfig.ENABLE_FEEDBACK_ANIMATION ? 'shake-rotate' : '';
 
 /**
  * The scores to display for selecting. The score is the index in the array and