Moved the grid to bottom appbar
Moved back button, title, and download button to nav bar. Added options button and function that needs to be implemented
Added playback options box.
Merge branch 'VideoPage_TopAppBar' of github.com:hudl/hudl-win8 into VideoPage_TopAppBar

Conflicts:
	HudlRT/Views/VideoPlayerView.xaml
Hooked up options menu in app bar with playback options selection box.
Clicking on the video will now open the app bars
Modified entrance animation of options popup.
Download button implemented in top app bar. Needs updated parameter from UI_Overhaul. Cached parameter converted to DownloadAccessor.Instance
Merge branch 'VideoPage_TopAppBar' of github.com:hudl/hudl-win8 into VideoPage_TopAppBar
Bound download button visibility
Merge remote-tracking branch 'origin/VideoPage_TopAppBar' into AppBarGrid

Conflicts:
	HudlRT/Views/VideoPlayerView.xaml
Put video in full screen and removed expand/collapse grid functions.
Merge branch 'AppBarGrid' of github.com:hudl/hudl-win8 into AppBarGrid

Conflicts:
	HudlRT/Views/VideoPlayerView.xaml
	HudlRT/Views/VideoPlayerView.xaml.cs
Fixed bug where both options and filtering popups could be visible at the same time.
Deleted commented code
Merge branch 'AppBarGrid' of github.com:hudl/hudl-win8 into AppBarGrid
Merge remote-tracking branch 'origin/AppBarGrid' into UI_Overhaul_Cache

Conflicts:
	HudlRT/ViewModels/VideoPlayerViewModel.cs