Images sizes setting
Option for selecting different image sizes for various usage
Merge branch 'master' of git://github.com/Aftonbladet/ab-wordpress-plugin-ab_gallery_slider

* 'master' of git://github.com/Aftonbladet/ab-wordpress-plugin-ab_gallery_slider:
  Styling for Caption and Byline
  Some small cleanup
Merge branch 'master' of git://github.com/Aftonbladet/ab-wordpress-plugin-ab_gallery_slider

* 'master' of git://github.com/Aftonbladet/ab-wordpress-plugin-ab_gallery_slider:
  CSS styles are now loaded separately from JS files