BUG-FIX: load signal_type, record_by and signal_origin were not overriding the values in the file. Also several improvements to the docstrings and to the exceptions raised when a wrong value is passed to any of these arguments
Merge branch 'master' of https://github.com/hyperspy/hyperspy
Merge branch 'master' of https://github.com/hyperspy/hyperspy
Merge branch 'master' of https://github.com/hyperspy/hyperspy
Merge branch 'master' of https://github.com/hyperspy/hyperspy
EHN : replace only_subshells by only_lines