Removed unneccesary Component constructors by making the Entity call setEntity() on its components

Also found the problem which caused the framerate to be capped at 60fps in the rendering call.  It was the
result of driver settings having vsync enabled by default.  This was solved by running "export vblank_mode=0"
in a terminal and launching the program from there.
Merge branch 'master' of https://github.com/spfrommer/phage2d