require an email address if not submitted - see #9
add a mailto: link to user emails / gravatars for fun / 'code' get route
add specs for CodeMatcher
Merge house9's CodeMatcher refactor, from PR #13

Conflicts:
	app.rb
Move CodeMatcher model to correct place, fix spec
Merge branch 'codematcher' of git://github.com/joonty/ppwm-matcher into joonty-codematcher

Conflicts:
	lib/ppwm_matcher/app.rb
Ensure there is a log folder
Merge branch 'joonty-codematcher'