Added data model and parser for settings.
Added config xml file to res/raw/
Changed MainActivity, Added ParseXmlSettings.
Added tests for Settings
Added shared debug.keystore.
Added Google Play Services library to VCS
Updated build tools and IDE projects to use Google Play Services library.
update with action bar
Merge remote-tracking branch 'upstream/android' into android

Conflicts:
	AndroidManifest.xml
fix layouts action_bar_sightseeing.xml, activity_sightseeing.xml
delete unnecessary layout/main.xml, layout/sliding_menu_list.xml
fix strings.xml (add string-array)
add edits in SightseeingActivity.java
add NavigationDrawer to SightseeingActivity.java
add sliding_menu_item.xml for ListView in NavigationDrawer
fix unorganized imports
Changed Settings, SettingsParser, SettingsHelper
Changed MainActivity, ParseXmlTask. Deleted ParseXmlTask
Changed test classes
fixed formatting
small UI changes
add style in styles.xml for sliding list
Added static final fields for keys in Settings class
Removed error handling from SettingsHelper and SettingsParser
Changed constants names, added logs indicating used file
Fixed parsing xml on orientation change, added constants with file paths