Viewpager interface
+interface(only offline)
Merge remote-tracking branch 'origin/interface' into Interface+Service

Conflicts:
	AndroidManifest.xml
	src/rarus/eatery/activity/MainActivity.java
	src/rarus/eatery/database/DBManager.java
	src/rarus/eatery/database/EateryDB.java
	src/rarus/eatery/model/Menu.java
	src/rarus/eatery/model/Order.java