Added SU2_MPI package for easy calling
added SU2MPI files to makefile
Added su2mpi files
updated makefiles
Added su2mpi files to xcode
changes from added files
Removed scalar option and changed to specific types
Added comments
removed scalar option. Still need to add prints
Got enum case to compile. Checking implementation
Single option and Enum options all work. Trying to add EnumListOption. Compiles, but can't add types yet
Added DoubleArray options
Merge branch 'config_rewrite' of http://github.com/su2code/SU2 into config_rewrite