Work on birth death model: some minor changes on existing random 
sampling and added the ability to have other sampling strategies.
IBR fix( Move_IbrVar() calculates prior properly now)
Fix of bug when different partitions were considered to have different branch models based on sampleStrat while they were actually the same
Fix of sumt when it did not delete taxa that were deleted after mcmc run.
Solved problem with likelihood update for the bm model.
New starting state for shape parameter (100.0). More appropriate max for NodeSliderClock move.
added sampling strategies for birth death model
fixed issue with beagleUpdateTransitionMatrices call where count was sometimes zero
 Relaxed clock brlengths of red tree are adjusted properly after deleting taxa.
Fix of ancestral states printing to file for protein and other models which use PrintAncStates_Gen()
A number of minor bug fixes and preliminary implementation of PARTIAL,NEGATIVE(soft) constraints.
Fully operational partial|negative constraints.
Stepping stone sampling (with no help) fix of many small bugs
Fix of a bug when no constraints are used caused segmentation error
Fix of SS mpi
Help om SS is added.
Fix of MPI hard constraint
Warnings cleanup
Fix in debug code and some cleaning.
Non-debug Error fix