Merge pull request #48 from jarsen/master

Remove Keychain Schema + More
Merge pull request #49 from jarsen/master

reset the client when server revokes token
made the stream generic for use in a course
Adds back in the root context fetch method for stream items
Merge pull request #50 from derrh/master

made the stream generic for use in a course
Make sure modal actually is dismissed
Merge remote-tracking branch 'instructure/CanvasKit/master'