a custom source can now be read in from file
message written when reading in source
fixed integer type for filetype during read source
added test for read source
Merge branch 'source_interval' into read_sourcefile
updated documentation of read source from file
Merge branch 'develop' into read_sourcefile
check filetype before reading in source
converted source_separate to new separate tag
noseMPI uncommented
uncommented mpi capability
uncommented mpi capability in run 2
Change source_separate to separate in test_source_file.py.
Merge pull request #243 from mit-crpg/read_sourcefile

Ability to initialize source based on source point file.