Merge branch '25011-hoverstates-for-collapsed-issue-merge-request-sidebar-EE' into 'master'

Adds hoverstates for collapsed Issue/Merge Request sidebar for Time tracking Icon

This MR is part 2/2 of https://gitlab.com/gitlab-org/gitlab-ce/issues/25011

This adds the hover state for the time tracking icon, which is only in EE.

![2016-11-28_00.09.54](/uploads/a1ae70e10ad847c4980fa9eca3dcfe18/2016-11-28_00.09.54.gif)

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/25011

See merge request !918

app/assets/stylesheets/pages/issuable.scss

@@ -430,6 +430,10 @@
       height: 16px;
       fill: $sidebar-collapsed-icon-color;
     }
+
+    &:hover svg {
+      fill: $gl-gray;
+    }
   }
 
   .help-button,

changelogs/unreleased-ee/25011-hoverstates-for-collapsed-issue-merge-request-sidebar-EE

+---
+title: Adds hoverstates for collapsed Issue/Merge Request sidebar for Time tracking Icon
+merge_request:
+author: