Review changes made for Issue #53 CMake

I've made all the CMakeList files the project needs. I managed to get the project to build, compile and install. However, when I try to run the qmlscene ui/main.qml, it can't seem to find the directories where the plugins are installed. Could you have a look?
This was referring t o the BZR_SOURCE variable, which I now realize wasn't clear.

But let's ignore everything related to click packaging for now.  This PR will get it building and running, and then we can get the click stuff working later.