LQNASH: Added lqnash and updated the docs to QE standards.
LQNASH: Added an example of the duopoly model.
Started test for lqnash.py
LQNASH: Finished first nnash test.
Fixed indexing in illustrates_lln.py
Merge pull request #68 from oyamad/illustrates_lln

Fixed indexing in illustrates_lln.py
LQNASH: Added a second test.
Merge pull request #69 from jstac/lqnash

Lqnash
Removed plot method from ecdf.py, modified numpy_solutions.ipynb appropriately