Merge branch 'insta-decorate'

* insta-decorate:
  Add framework to support removing refs
  Show refs in HTML view
  Allow copy and pasting of web source by pressing 'c'
  Refactor cellInfo structure
  Only decorate if we need to
  Multithread test
  Add objective c diff header

Conflicts:
	GitX.xcodeproj/project.pbxproj

PBDetailController.m

@@ -161,18 +161,4 @@
 	int index = [[commitController selectionIndexes] firstIndex];
 	[commitList scrollRowToVisible: index];
 }
-
-- (void)tableView:(NSTableView *)aTableView willDisplayCell:(id)aCell forTableColumn:(NSTableColumn *)aTableColumn row:(int)rowIndex
-{
-	if (![[aTableColumn identifier] isEqualToString:@"subject"])
-		return;
-
-	PBGitRevisionCell* cell = aCell;
-	if (self.repository.revisionList.grapher &&
-		![commitController filterPredicate] &&
-		[[commitController sortDescriptors] count] == 0) {
-		PBGitGrapher* g = self.repository.revisionList.grapher;
-		[cell setCellInfo: [g cellInfoForRow:rowIndex]];
-	}
-}
 @end