Expand CKUploader to support uploading to generic URLs
Merge branch 'v2.x-beta' into uploader-urls
Merge branch 'v2.x-beta' into uploader-urls

Conflicts:
	ConnectionKit/CKUploader.m
Switch uploader tests over to URL-based API
Remove path-based uploader API
Merge commit '5728133fa67b37d32f103ca52d7302520e37ea89' into uploader-urls
Merge branch 'v2.x-beta' into uploader-urls
Merge branch 'v2.x-beta' into uploader-urls
Merge pull request #67 from karelia/uploader-urls

Switch CKUploader API over to URLs