Pulled out most of NavigationDrawer functionality to CaDrawerActivity
Ton of refractoring in MainActivity.  Added Activities for InternalTraining and ForSuppliers
Renamed Adapters package
Created NavigationDrawerItem. Created Abstract SectionActivity.  Updated MenuListAdapter to u ser List<NavDrawerItems
Added headers and proper navigation for Section and below navigation
Android Studio added another .iml file....this probably won't be good
Merged in agl NavigationDrawer approach w/ NavigationItem model.  Moving to pure activity approach