FIX: Throw exception if >2GB
Merge pull request #928 from mluessi/fix_file_size_limit

FIX: Throw exception if >2GB
update python tutorial images
update mailmap
website cosmits
update python ref
cosmit
cosmit
more cosmits + missing whats new
more cosmits ++
cosmit
bump version number
missing commit number
move to 0.8 cycle