New style buttons.
Removed underline when links are used as buttons.
Renamed 'sets' to 'themes'.
Added pixel space between grouped and tabbed buttons.
'small' and 'theme2' are now the default, with 'big' and 'standout' as opt-in styles.
Updated to use Origami Registry for o-fonts Bower dependency.
Corrected font include.
Updated readme.
Merge branch 'new-buttons'

* new-buttons:
  Updated readme.
  Updated to use Origami Registry for o-fonts Bower dependency. Corrected font include.
  'small' and 'theme2' are now the default, with 'big' and 'standout' as opt-in styles.
  Renamed 'sets' to 'themes'. Added pixel space between grouped and tabbed buttons.
  Removed underline when links are used as buttons