Added new Flexbox mixins from https://gist.github.com/cimmanon/4461470
Added import for new Flexbox mixins
Added tests for Flexbox
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
fix custom watch function

block as parameter need '&'
removed duplication in sprite sass function module
removed old sprite_image function
removed test for sprite_image
updated changlog
Merge branch 'patch-1' of github.com:tka/compass
regression test closes #1230
version bump
updat change log for ruby 2.0 support
Update linear-gradient documentation
Added examples/documentation
Added missing elipsis