Shifted the test_reverse unit test back into test_selection.py.
Import of the dummy modules into the correct location.
Removed the dummy modules.
Manually reverted r6073.
Created more dummy modules.
Added a dummy molecule module for the unit tests.
Renamed all the function calls.
A bit of code rearrangement as a test.
Lots of unit test fixes.
Fixed the naming of the test_mol_spin_res.py file.