added align items and align self
added align content. modified align self and align items to have consistent variable replacement. added additional guard expressions for clear declaration of variable replacement on align items, align content, align self. added a unit test less file to ensure the generated css is correct and minimal.
moving testing files into test folder
minor changes to flex and inline flex based on the fact that the tweener spec was MS only and used -ms-inline-flexbox for inline functionality
completed justify content; started applying consistent code commenting in terms of identification of the 3 specs within each rule.
significant changes to flex property based on how significantly the property varies across 2009 and current/tweener spec, as well as handling of a value of none instead of individual shorthand values
added flex-grow, flex-shrink, flex-basis
added flex-flow
added a few reference article links
minor update to Flex rules to incorporate initial and auto declarations
Merge pull request #6 from ProLoser/mwe_new_fx

Mwe new fx