Add Vim swap files to .gitignore
Add a simple unittest for project
Cleaned up code and removed regex hack by adding groups
Simplified sympy string parsing - might need to readd local dict of symbols for more complex equations
Added streaming mode with tests, having strange bug with nosetest, tests work fine when invoked via unittest but fail in nosetest
Updated README with new option and testing information, also fixed a bug with testing
tests pass so I assume the sympify change worked