bower support

does not break any tests (that werent already broken)

added new set of tests into separate test file -- may be overkill if you want to remove some, or consolidate no problem w/ that from my end

references https://github.com/atomify/atomify-css/issues/29
i know it looks like i removed that but the diff is actually a little screwy.  if you compare my test.js with your test.js you will see i did not remove any t.error   and also that the 3 bower tests i added mirror their non-bower test counterparts in not having t.error.  are you asking me to add t.error to my bower tests despite this, or to add t.error tests to all of the tests in the test file?  i am hesitant because those other tests dont have anything to do with this PR