- add down-sampling capability to _plot2DImage as per simpeg/simpeg537
- Changes for windows compatibility:
- `long` changed to `long long`
- Changes for appveyor testing:
- needed to cd into a different directory to do the tests
- Setup.py changes:
- Used numpy's distutils for package management
- This can now be built and installed without any special arguments to the setup.py file. For example, python setup.py build and python setup.py install
both work.
- The setup.py files within each subpackage take care of cythonizing and attaching the extensions, making the main setup.py file a little cleaner.
- This version was able to be pip installed on my Windows machine, should consider building wheels for distribution without compilation.