Merge branch 'release/3.0.0.2'

* release/3.0.0.2:
  Bump version to 3.0.0.2
  Cleanup the theme partial
  Quote table row classes
  Whitespace
  Only extract the minimum rules needed
  Use image-url for retina mixin
  Transitions benefit from variable argument count
  Keep original button-variant syntax
Fixed issue in 'img-retina' mixin where 'file-1x' and 'file-2x' variables weren't being properly expanded due to enclosing quotes.
Bump version to 3.0.0.3
Merge branch 'hotfix/v3.0.0.3' into develop

* hotfix/v3.0.0.3:
  Bump version to 3.0.0.3
  Fixed issue in 'img-retina' mixin where 'file-1x' and 'file-2x' variables weren't being properly expanded due to enclosing quotes.