v 0.7.7

removed styling for invalid/valid input areas.

reduced selector group for :required input types to simply input/textarea

remove instances of including vendor for background size, as it's fine to just use the unprefixed rule.

new transition mixin that removes -o- & -ms- prefixes

new %label placeholder to extend into label and .label

consolidate various rules into fewer rulesets / reorganize rules to different files as needed.

Breakout base sass form inputs into multiple files
Breakout helper sass navs into multiple files

Delete listless horizontal and vertical navs.

Remove extends of .content into header-content and footer-content.  Duplicate needless classes there...

Revise markup files accordingly