Merge Ionization into Dev to see changes

The code is compiling but once I try to run it, I am receiving a SegFault without much other comment. 
That happens when I use CUDA 5.5 or 6.0. If I use 6.5 it tells me that it cannot find a CUDA capable device.
LOL!!! WTF You're absolutely right, I just did a Diff on the dev branch and noticed that I accidentally must have deleted this while I was deleting sth else! 

How the heck did that happen?!! :scream: 

*sigh* sure ... and when things are away once, you don't miss them if you never noticed