Pygmi

* Added updated IGRF coefficients
* Bug fixes in saving of 3d model, when it is used by another process, and in reading csv vector data.
* IGRF bugfix: fixed a bug relating to newer numpy
* Maintenance: Cleaned code in the equation editor.
* Add more control to Anaglyphs
* Fixed the orientation of anaglyph contours
* Fixed a bug in beachball code.
* Introduced anaglyphs for raster data.
* Updated color bar list to new standards
* Minor changes and a bugfix between ginterp.py and the latest matplotlib.
* Added directional lighting to 3D display

* Added axis and orthographic projection option to 3D display view.
* Added perspective change to beachball plots
* Corrected clustering label.
* Bugfix on lithmodel.
* Correction to profile coordinates to place profile in centre of cell, as opposed to beginning of it.
* Added IGRF report backs.
* Fixed bugs with tensor calculations
* fix for error exporting text columns
* fixed a bug with calculating changes only on model
* made changed to the way matplotlib calls are made.
* speed improvements to gravity and magnetic calcs
* Fuzzy and Crisp clustering replaced by scikit_learn cluster analysis.
* Import of csv point data enhanced and new cut tool added for point data.
* Dependancies updated. Minor bugs fixed
* Removed the auto update check due to problems it was giving on many pc's
* Fixed bugs with smoothing data and merging data
* Got rid of excessive old code.
* Fixed a bug with null values from equation editor.
* Fixed null value bug exporting rgb tiffs. (8-bit)
* Changed the profile views so that calculated data is drawn over observed data.
* Fixed bugs relating to selection of raster bands going to modelling, and saving of those raster bands.
* Fixed bug on data import for Qt5
* Added Lith Merge
* Migrated to Qt5

* Fixed incorrect calculation of remanence.
* 3d import fix.
* Fix for 3d import from text files.
* Anaglyph tests.
* Minor maintenence.
* Seismology Focmec format update.
* Added feature to calculate only changes to model.
* Fixed leapfrog import bug when header is in csv file.
* Readme update.

- Added import of Leapfrog csv blockfiles
- Fixed bug exporting ER Mapper files using SA custion projection
- Fixed a bug in 3D model software
- Bug fix for merge module
- Added a tool to merge two models
- reactivated a progress bar display
- alpha speed update
- update modelling calculation using multi processing.
- numerous bug fixes

- Fixed a bug crashing regional test
- Fixed a bug where null values were not set correctly in the normalization routine.
- Fixed a problem with an offset on calculated magnetic data, introduced in v2.2.8
- Fixed a bug when using the Seismology Delete Records option.
- Removed libraries not needed etc
- Fixed a problem with adding a gravity regional data set to calculated gravity.
- Updates to the speed of the calculation for magnetic data.

- Update to setup for hosting on pypi
- Added the possibility for ENVI files to have .dat extension
- Allowed uint files to have a no data value of 0 where none is defined
- Fixed bug with surfer export
- Fixed bug with regional test
- Equation editor bug fix
- Fixed a bug where profiles were not saving to images correctly