added learning curve experiment, mid construction
Merge branch 'master' of github.com:craig-corcoran/feature-learning

Conflicts:
	sirf/experiments/covariance_experiment.py
Merge branch 'master' of github.com:craig-corcoran/feature-learning

Conflicts:
	sirf/bellman_basis.py
Merge branch 'master' of github.com:craig-corcoran/feature-learning
more work on learning curve
Merge branch 'master' of github.com:craig-corcoran/feature-learning

Conflicts:
	sirf/bellman_basis.py