detect whether MPI is used, and load correct multinest library version
keyboard interrupt catch-all
compatibility with old outputs; refined histograms for low dimensions
some doc modifications
added MultiNest license exception
Merge branch 'master' into autompi
no issue for this bug yet
Merge branch 'master' into sigint

Conflicts:
	pymultinest/analyse.py
INS evidence result was not used yet. fixing that
fixed bug in mpi detection