Fix up CKFile and add tests
Add CKFile Networking
Clean up CKFolder interface
Add Files and Folders
Merge instructure/CanvasKit/master

Conflicts:
	CanvasKit.xcodeproj/project.pbxproj
The Great CK2 Refactor

Renamed all prefixes to be CK2 instead of CK
Merge pull request #10 from jarsen/master

Refactor Prefix CK -> CK2