Reset floatting with main  mixin & simplify atomic  mixin
Separate Herow in several files
Starts the layout module over Herow core functions
Generalize layout module to component
Uniformize SassDoc end-of-lines
Allow negative & null column size
Rename layout test into component
Create responsive tools on component mixins
Add component-column-flow() and component-column-offset() mixins
Allow to use component-state from another component
Bugfix on every component state that contains multiple times the same state
Group component-flow properties across component-state
Better handle of conversion on component-state-list in to media-query
Add debug output for Herow-on()
Remove TODO comment, because it's done!
Add a warning when trying to use different component in component state list
Add warning when trying to fetch an unexisting component
Remove gutter option on Herow component module