Merge branch 'fix-tabs-not-rendering-in-chromium-45' into 'master'

Remove CSS property preventing hard tabs from rendering in Chromium 45

This is to workaround a bug in Chromium 45 (https://code.google.com/p/chromium/issues/detail?id=446434),
which is the default browser in Ubuntu 14.04 and older.

Closes #3220

See merge request !1779

CHANGELOG

@@ -5,6 +5,7 @@ v 8.1.4
   - Prevent redirect loop when home_page_url is set to the root URL
   - Fix incoming email config defaults
   - Make color of "Accept Merge Request" button consistent with current build status
+  - Remove CSS property preventing hard tabs from rendering in Chromium 45 (Stan Hu)
 v 8.1.3
   - Force update refs/merge-requests/X/head upon a push to the source branch of a merge request (Stan Hu)

app/assets/stylesheets/framework/typography.scss

@@ -173,7 +173,6 @@
  *
  */
 body {
-  text-rendering:optimizeLegibility;
   -webkit-text-shadow: rgba(255,255,255,0.01) 0 0 1px;
 }