Android port#12

Open

kwelch wants to merge 4 commits intoColinEberhardt:masterfrom

kwelch:androidPort

Commits on Mar 24, 2016

upgraded react-native; added android project
Kyle Welch
committed

Commits on Mar 29, 2016

migrated from NavigatorIOS to Navigator for cross support
Kyle Welch
committed
minor style updates
Kyle Welch
committed

Commits on Mar 30, 2016

updates to android for location support and back button
Kyle Welch
committed