Add the ostringstream operator
Trivial addition of write_mcnp()
Add more to mcnp
Add temporary c++ testing facility
Debug nucname::mcnp problem
Successfull basic json manipulation
mcnp() rough draft
frac_type_id; fails nosetest
Go back to string arg for mcnp
updated the cython wrappers
modified json metadata in mcnp
modified the cython to allow string return
modified tests, still needs some changes
nosetests test_materials passes
All nosetests pass
ostringstream inherits from ostream
Remove commented code
Remove commented code; re-indent
Exit FAIL if no nuc_data
Add a doc line; reverse an inadvertent change