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.
This charge is no charge in the simulation. This is the base charge which is stored as attribute in the HDF5 or Adios file. This attribute is only stored ones per data set, not per particle.