TESTS: Finished lqcontrol test.  Maybe add more examples later, but I think this is a good pair to start with.
Merge branch 'tests' of github.com:jstac/quant-econ into tests
Merge branch 'tests' of github.com:jstac/quant-econ into tests
BUG: The simulation piece of linproc.py was using N(0, 1) for the shock process instead of N(0, sigma^2)