set loading false when error occurs loading forecast, display error message when forecast fails to download
Merge branch 'develop' of https://github.com/avalanchedotca/CACMobile into develop

* 'develop' of https://github.com/avalanchedotca/CACMobile:
  Added loading icon to forecast page and observation list page/photo modal
  Added link to profile on about page
  Can't open modals before accepting TOU
  Added hidden submit button so hitting enter in form doesn't open modal/invoke buttons
  Moved cancel button in footer to close button in header