redesign
I added New Spot Page.
I'm applying new UI.
I applied changed design of app.
file list guide
before adding with master / commit for backup
Merge branch 'master' into hongkun

Conflicts:
	PintheCloud/Pages/AddFilePage.xaml.cs
	PintheCloud/Pages/ExplorerPage.xaml.cs
	PintheCloud/Pages/PinPage.cs
	PintheCloud/Pages/SplashPage.xaml.cs