VID-605 Overriding getUser method

* Shows actual user who uploaded video to local wiki not who uploaded to the video wiki
* Added documentation
* Replaced some deprecated method calls.
VID-605 Use the right replacement method.

Needed to remove the 'parsemag' option.
VID-605 Make sure we always have a fallback
VID-605 Addressed a code review comment & made formatting changes
Merge pull request #1173 from Wikia/VideoSprint29-VID-605-ShowAttribution

VID-605 Overriding getUser method