Merge branch 'blue-links-fix' into 'master'

Revert color for links inside gray areas

**Before**

![Screen_Shot_2016-03-17_at_12.23.17_PM](/uploads/55e518721d83c3bfc42edba3e97ec44d/Screen_Shot_2016-03-17_at_12.23.17_PM.png)

**After**

![Screen_Shot_2016-03-17_at_12.23.03_PM](/uploads/08fbf8e9139e4eadf191102cffd29617/Screen_Shot_2016-03-17_at_12.23.03_PM.png)

Reverts !3147

See merge request !3276

app/assets/stylesheets/framework/blocks.scss

@@ -28,10 +28,6 @@
   border-bottom: 1px solid $border-color;
   color: $gl-gray;
 
-  a {
-    color: $md-link-color;
-  }
-
   &.oneline-block {
     line-height: 42px;
   }