Removed TEST flag in happah.pro for Unix

tried to add a involuteGear to the view.

~TODO: Program stops with error creating the QGLContext!
Removed a lot of fixing stuff for windows and got the DrawManager.* and
all other files in happah/gui from the master branch. Cause: The
visualization shutdown with error of missing QGLContext.

Added an involuteGear in the init-method of DefaultGUIManager.cpp. It
shows up at program start.

Be aware: Need to start the program via console and not via the
QTCreater, otherwise you cannot see anything.s