added variance passing with signal inav and isig views
Automatic style corrections courtesy of autopep8
ENH: integrate_in_range out of place
DOC: some docs
Merge branch 'master' into ENH_Integrat_in_range_out_place
BUGFIX: split not retriving the proper metadata
Automatic style corrections courtesy of autopep8
Fix Fourier ratio default treshold

EELS.fourier_ratio_deconvlution bug: Docstring say default treshold of
None should make method use first minimum. The feature was not
implemented, and caused an exception in
estimate_elastic_scattering_intensity. Fixed by calling
elastic_scattering_treshold if treshold is None.
Merge pull request #227 from vidartf/VidarsBranch

Fix Fourier ratio default treshold
BUGFIX: deepcopy of axes_manager
Automatic style corrections courtesy of autopep8
ENH: add test for the two bugs
Automatic style corrections courtesy of autopep8
Test: lower the precision of the match
DOC as_spectrum(0)
DOC: SEM vs TEM
DOC: making example work for add_lines
DOC: typos
DOC: metadata update
BUGFIX: dot missing