Adds swap utility
Adds removeEmpty utility
Adds fixture and tests
Fixes test
Merge pull request #9 from mobify/remove-empty

Remove empty
Merge
Updating test to use is to test element type. Added test to ensure attributes and content are converted
Adding tests to ensure swapping doesn't munge children
Merge pull request #8 from mobify/swap

Adds swap utility
Merge branch 'master' of https://github.com/mobify/adaptivejs-utils into remove-style