moved settings to a separate file. should be able to call it now from any view controller
reenabled Location Allowed switch on settings pane. PREV COMMIT: moved toolbar on tableview to top of the screen
added NSUserDefaults for location enabled setting. persist the flag between app launces. TODO: fix flag when switching between tabs and not closing settings view
fixed closing settings view when switching back to the tab, and haven't closed it earlier
Merge branch 'development'