Fix #885 - ugly reblog dropdown
Updated to use ICS-style spinner when available
Fix #896 - only show .com blogs in reblog dropdown
Switched to custom dropdown layout to remove checkboxes
Reader popups now use Holo light on ICS+, removed unused styles from reader_styles
Merge pull request #894 from wordpress-mobile/issue/885-ugly-reblog-dropdown

Fix #885 - ugly reblog dropdown