* replaced theme with one created using Action Bar Style Generator
large refactoring:
- moved api calls from ListArticleActivity into its own service, communicating updates with broadcasts
- replaced SettingsActivity content with a ListView
- replaced preferences with EasyPrefs
- improved database write performance by doing one delete instead of many
- improved list scrolling performance by using a viewholder
- UI tweaks
* more design changes and design fixes
* more refactoring
* added article domain and tags to database table (not used yet)
* added intermediate updates while syncing
* finished implementing EasyPrefs everywhere
* DrawerListAdapter now extends SimpleListAdapter
* Renamed 'read' to archive
* determinate progress when fetching articles
* restored actionbar titles
* added cards-ish ui