Add Travis build support
Add buildstatus image to readme
Remove WebPower namespace as per packagist naming conventions
Getting ready for 1.0.0
Removed "keyframes rules" and added control to not consider empty
props / rules
Added tests for the removal of keyframes rules
Merge pull request #12 from neilime/master

 Removed "keyframes rules" and added control to not consider empty  props / rules
Update composer deps to ensure css-selector is a stable release