- major code refactoring
- changed minimum SDK version from 7 to 10

- added Sexually Transmitted Infections (STI) information feature 
- added Contraception information feature 

- converted all views to sherlockActionBar
- added navigation bar with "Back", "Home" buttons and SubMenu to all
activities 

- implemented paged tabs support for STI info feature
- implemented tabbed fragments support for contraception feature