DSGRN

• Replaced build system so DSGRN is now compiled as a python module extension
• Refactored into Python interface for better usability
• Removed dependencies which could make it harder to install
• Added constructors for ease of use
• Introduced "pickling" to many classes
• Now packaging logic resources
• Switched to ReadTheDocs
• Introducing experimental SubdomainComplex for Conley Theory
• Rewrote Signatures program as an mpi4py application using the python interface