Working on plugging in watched path regexes

and I'm feeling like the design is stable enough to warrant the start of
some black box testing.
Removing unused struct var
Forgot to short-circuit if none of the commit paths are watched
Merge remote-tracking branch 'origin/master' into support-watched-paths

Conflicts:
	handler.go
	payload.go
	server.go
Merge remote-tracking branch 'origin/master' into support-watched-paths
Getting email tests working + fixing a map init bug
Asserting unwatched branches and paths do not result in rogue commit emails
Adjusting some whitespace in email template loops
A few more modifications after looking things over
Merge pull request #15 from modcloth-labs/support-watched-paths

Support watched paths