Added logic to get photos and updated authentication demo.
Updated Image.cs
Getting Images
Merging ayesha_dev branch work
Adding packages to repository

Adding packages to repository to make sure everyone is working off the
same versions
Merge branch 'mathura_dev'

Conflicts:
	Photo-Rainbow/Main.xaml.cs
	Photo-Rainbow/imageColorData.cs
Removing dead code from Main.xaml.cs

Also adding files to the project
Merge remote-tracking branch 'upstream1/master'

Conflicts:
	Photo-Rainbow/packages.config