[queso]: for #72, removing an MPI_Comm_world reference

Changing this to a queso_abort call.

Conflicts:
	src/core/inc/Defines.h
[queso]: replacing erronious reference to MPI_COMM_WORLD with RawType_MPI_Comm Object inputComm
[queso]: whitespace formatting for the OCD among us.
[queso]: replacing references to MPI_COMM_WORLD with communicator passed to queso.
Merge pull request #87 from dmcdougall/world

Remove hardcoded MPI_COMM_WORLD in QUESO