Squashed 'app/assets/stylesheets/primary/' changes from 183b71a..2037d50

2037d50 Add blank buttons and navigation stylesheets
0af4b65 Remove css.scss extension in favor of scss
761064c Merge pull request #762 from teamleada/mark-move-css

git-subtree-dir: app/assets/stylesheets/primary
git-subtree-split: 2037d505c53916e46b5761cc99dc4bedcc04cf63
'[primary] Merging primary into master'