Save species dictionary when saving Java kinetics library.
Installation instructions for rdkit on Mac added
QMTP compatible with G03 and MOPAC2009.

Making them backwards compatible. Once the environment
variables have been set correctly, they should work.
Fix for people without the environment variable GAUSS_EXEDIR set

os.getenv('UNDEFINED') returns None, which is not a string,
which messes things up later.
Translated .xml input files to current format.

Addresses issue #122
Add missing imports necessary for kinetics database group fitting.

I guess these were only used in bits of the code that are called from
RMG-database/kineticsGroups.py, but they're definitely needed for that.
Merge branch 'master' of github.com:GreenGroup/RMG-Py