Very minor documentation fix.
Add enumeration method for the Lemke Howson algorithm as well as a more extensive reference document.
Add implementation of the Lemke Howson algorithm
Add discussion section to documentation
Documentation
Add vertex enumeration algorithm.
Add ability to calculate utilities against a given pair of strategies.
Unpin numpy version number for easier installation.
Various packaging and testing improvements and a CITATION.md file.
Fix bug for pip installing.
First release