mom-79 Test scripts

Two things: 

- NCI build config files. 
- A bit reproducibility test for the MOM_SIS om3_core3 experiment. Presently it is NCI specific but can be generalised later. To run: nosetests test.test_bit_reproducibility:TestBitReproducibility.test_om3_core3

See http://www.mom-ocean.org/youtrack/issue/mom-79