change nav-bar to ionic-tabs
ui-sref to href in tabs
remove nav-view, add html in ion-tabs
ion tabs navigation
add tabs to state, config tabs.{{views}}
ng-repeat on map
markers
add markers from firebase
fix black screen on account view
 remove class 'has-footer has-content' from map
add placeholder user tile
userTile
add photo page
add bindings to user data
resolve merge conflict 'iosNavTabs'