fixed issue with missing subsystems inside of a SerialSystem under a ParallelSystem
minor cleanup
removed mpiprint, misc. mpi cleanup
removed unused file
Merge branch 'mpi' of github.com:naylor-b/OpenMDAO-Framework into dev
merged from dev
Merge branch 'dev' of github.com:OpenMDAO/OpenMDAO-Framework into dev
fixed output boundary varsystem issue
added ken's test
Merge pull request #1881 from naylor-b/boundary_fix

fixed an issue with output boundary vars in an assembly.  Also some misc. mpi related cleanups.