[Fixed] lua unit test using error to use the has.errors from busted
instead of overwriting the real error function.
[Changed] useHolocron to useItem in Jedi Manager to prepare for other
items to be used in the jedi progression system.

Change-Id: I981add22393cffa6e636ca9434e6d253d7f40003
Merge "[Fixed] lua unit test using error to use the has.errors from busted instead of overwriting the real error function. [Changed] useHolocron to useItem in Jedi Manager to prepare for other items to be used in the jedi progression system." into unstable