Added new Flexbox mixins from https://gist.github.com/cimmanon/4461470
Added import for new Flexbox mixins
Added tests for Flexbox
Fix typo in background-image support
Update hyphentation support
Update hyphenation tests
Converted prefix support variables to match the new style
Corrected behavior for  argument on  mixin
Reorganized comments & default variables
Fixed supported prefixes order and function call (was using incorrect name)
Adjusted function name and added missing commas
removed png grid generator the prefered is now the css3 grid
typo in changelog
file_exists function
added ruby 2.0.0 to travis
merge
fixed a failing cucumber test
Merge pull request #1173 from chriseppstein/gradients

Gradients
fix custom watch function

block as parameter need '&'
removed duplication in sprite sass function module