added a function to allow user to use a mixin to insert a single icon into compiled CSS instead of the full icon list, therefore allowing customization without editing icon list.
Merge branch 'hotfix/2.5.5' into develop
Removes px from values of 0 in sass files.
Removes px from values of 0 in gumby.css.
Merge branch 'icons' of github.com:wadehammes/Gumby into wadehammes-icons
Added option to specify multiple icons or 'all', moved icon function/mixins to functions directory, moved entypo import to gumby.scss and used icons mixin in _base.scss
Merge branch 'wadehammes-icons' into develop
Added 'px' back in to _forms.scss comment
Updated RadioBtn events array to specify onCheck
Bump bower version
Reduce navbar active z-index to 999998 so modal always appears above active navbar
Merge branch 'hotfix/2.5.6'
Merge branch 'hotfix/2.5.6' into develop

Conflicts:
	css/gumby.css
Optional gumby-self attribute on toggles/switches, toggle trigger method adapted
Switch method adapted to support self attribute
Updated target id self is true for toggles and switches
Rebuilt gumby.min.js with Claymate
Fixed issue #150

  * Made a 1px border the color of the background for each shade
  * Fixed the .light and .dark duplication in CSS
Fixed that damn charset on CSS
fixed tooltip bugs with transition