ChangeScreen2: Prevent loading the same revision again

Reload of the revision is done over Reload link or 'R' shortcut.
Use a non-link color for the current revision and disable pointer
events on the anchor.

Change-Id: I83f0ad693391024b5e922861e5c7ea97169dbe06
(cherry picked from commit 13f8c68a3f0fa4ed7f3c6f6ea55449885704cc8a)
1 file changed