Updating documentation with support for SES3D 4.1
Adapting to SES3D 4.1
Adapting to latest flake8 version.
Zoom level affected by the simulation domain
plotting options.
Changed mercator projection to an equal area projection.
Fine tuning domain plotting.
Equal area projection for the model plotting.
Model color scale now centers around the median.

Results in better plotting for only positive/negative
anomalies.
Work on tutorial, model plotting and STF.
Added support for StationXML.

Also refactored the base LASIFException to the
__init__.py file.
Testing StationXML support.

Also some slight documentation changes.
Forgot to commit the StationXML test file.
Tests for StationXML handling.

Also added a test to test the exception handling
of the file info cache and in the same vein improved
some things.
Adjusting map plot test images