removes extra gem deps, add some utility mixins
adjustments to how we use the breakpoint mixin
rename media query mixin (avoid conflicts)
clean up old comments
define your own class name to use instead of .row
fix box-sizing order of prefixes and move it
update source from dev branch
remove gem file and old dependencies
bug: missing default media-query for units

adds clear classes
features: silent rows and additional utilities
Merge branch 'development-v1' into gh-pages
optimize output of silent rows via extend method