Parleypractice is now entirely seperate from Parley proper (a different cmake project) and right now has a basic QString-based question and answer test working.

I'm using WoC for everything; I think this will give me a lot of flexibility later on.

Thanks to some help from #kde-devel and jpwhiting, I got inheritance of the eduwidgets from both the interfaces and the qwidgets working without Qt complaining.

TODO in the near future:
* Get question/answer sets loading (the test questions are hardcoded atm ;) )
* Play with SVGs some
* Make the test application prettier (its really rough right now)
* Implement the Hint EduWidget

First SoC commit!