Merge pull request #17 from NinjaTux/master

added lint and coverage tasks to gulp
Added code climate badge.
Reordered badges for aesthetic beauty.
Wercker now checks code coverage too.
Wercker should run npm install -g as sudo.
Gulp is needed to generate test coverage.
Moved coverage task to deploy task, because it should only be performed and sent to code climate when master branch changes.
Added badge with code coverage info.
Added NPM badge.
added link to bunyan docs