Show file status in change details file list

Colour file paths by status (green: added, red: removed)
Mark files as binary if so
Don't show lines inserted/deleted if there weren't any lines
 inserted/deleted
Disable the onClick listener for binary files - there will be no
 diff available regardless.

Change-Id: I4ba086fc15784c4db0de7cb01d28d369ce1a4710