DOC: fix Sarahan article link
DOC: update authors information to point to the github/contributors
DOC: fix pdf link
DOC: fix pdf link (correct typo)
Add Signal.__setitem__
BUG-FIX: the image plots were not printing the intensity at the cursor position
BUG-FIX: utils.estimate_variance_parameters mask parameter was not working as expected
BUG-FIX: ScalableFixedPatter was raising an error when setting the spectrum
BUG-FIX: Model.extend was raising an error because _create_arrays was being called before setting the _axes_manager attribute. Also disable the unsupported insert method
BUG-FIX: typo was causing an Exception
Disable messages in Model fit_background and fit_edge
Rename Signal.estimate_variance to estimate_poissonian_noise_variance
Merge branch 'master' into parameter_set_free_unfree
Fix documentation in component.set_parameter_free and set_parameter_not_free
Add functions to set parameters in components in models to free or not