Add flewGrow file
(very) basis support for flex-grow
fixing typos
Added min/max-width/height support
Add basic margin/padding/border support
Merge branch 'feature/flex-grow', remote-tracking branch 'upstream/feature/flex-grow' into feature/flex-grow
Support string entries from 'flex' shorthand
Tidy up
add flex-basis and flex-shrink
Correct freezeList calculation
implementing flex-basis and retracting flex-shrink
Re-implent flex-shrink for testing
Merging changes from develop branch.

Conflicts:
	dist/reflexie.js
	dist/reflexie.js.map
	dist/reflexie.min.js
	src/polyfill/container/flexWrap.js
Just some basic JSHinting.
Moving flexGrow higher in the model object to respect flexbox algorithm.
So, uh, the full test suite is passing.

Wow.

1020 tests, all passing. /cc @pci
Generated output.
Omit main-size from CSS rule output.
If flex-wrap: nowrap, don't limit minimum value.
Unused vars.