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 -This way one avoids unneccessary calculations

reverting (last commit), setting back input schema version from 0.33 to 0.32, since last release version is 0.31

 -also introduced constants for BZ integration method to remove unclear numbers

(not yet used for anything)

I only comment it out because in a few months you will all miss it. ;)

 -move to io folder for writing out of the required quantities (has to be optimized)

The problem was that the version number of the file changes
during reading it. I now made the reading independent of the
version number.

(especially for meshes)

(not yet complete)

 Also calculate 'occupation matrix' for offdiagonal elements

 -otherwise a lot of time is wasted by integrating for every energy point and m mp pair

 -It will be modified soon