Changed the return values of bandit algorithms and added a function to analyze final regret. Also adding on spatial decomposition methods
Took Michael gamma = 0.98 indices over the ones on my (Jeff's) computer

Merge branch 'grasp_messiah' of https://github.com/jeffmahler/GPIS into grasp_messiah

Conflicts:
	matlab/bandit_sampling/collect_samples_grasps.m
	matlab/bandit_sampling/gittins_indices.mat
	matlab/bandit_sampling/indices.mat