Change header inclusion protection define statement to avoid conflicts
with the actual MSSM model classes.
Compare the MSSM_initial_guesser against Mssm_initial_guesser which
is implemented in terms of Softsusy.
Store the whole parameter point in the initial guesser class.
This simplifies the code and makes the smssm look more like the
generated models.
Store the whole Mssm parameter point in Mssm_sugra_constraint
Store the Mssm parameter point in the other constaints, too.
Now the call interface of Mssm should be equal to MSSM.