Change MaxLik to operate to normalized likelihood
Simplify calculation of Sobs following Nicolas suggestion

Conflicts:
	Analysis/LogLik.m
	Analysis/PseudoLogLik.m

Conflicts:
	Analysis/LogLik.m
Add forgotten line to PLEstimation

Conflicts:
	Analysis/PLEstimation.m

Conflicts:
	Analysis/PLEstimation.m
Add a test of ML estimation on simulated date
Improve test for MLE