Merge branch 'mobile-header-overlap' into 'master'

Fixed overlap in header on mobile

![Screen_Shot_2016-04-18_at_08.48.29](/uploads/8f371d0c717a57ca7afb29415e13d96c/Screen_Shot_2016-04-18_at_08.48.29.png)

See merge request !3777

app/assets/stylesheets/framework/header.scss

@@ -71,7 +71,7 @@ header {
   .header-content {
     position: relative;
     height: $header-height;
-    padding-right: 20px;
+    padding-right: 40px;
 
     @media (min-width: $screen-sm-min) {
       padding-right: 0;
@@ -122,6 +122,10 @@ header {
     }
   }
 
+  .project-item-select-holder {
+    display: inline;
+  }
+
   .impersonation i {
     color: $red-normal;
   }