added mediaLink to folder type in files.get

this is so clipboard url can use the right link.  It is useful to have in the files.get API as well

update unit test for 2 times called

refactored this for better implementation

fixed unit test to the way it was before

change setMediaLink to setSelfLink

test jenkins build

jenkins test #2
Merge pull request #62 from Rise-Vision/feature/url-clipboard

Feature/url clipboard