Allow chemkin file to be saved without comments if verbose is turned off.
Don't add bath gases to species list when loading chemkin files.

No thermo gets provided for bath gases, therefore rendering this function
useless.  RMG-Py should add instead generate these species and their thermo
at the start of each job.
Fixed definition of species termination in solver.

Was previously using concentration ratios ignoring changing volume
at isothermal and isobaric conditions. This fix is only appropriate for
the SimpleReactor and will need to modified if non-isothermal reactor systems
are introduced.
Save kinetics in RMG-Java kinetics library format.
Merge branch 'master' of github.com:GreenGroup/RMG-Py
Fixed units error in CanTherm output for kinetics jobs.

The units were given as {cm,mol,s}, but the values were printed in {m,mol,s}.
Applying a simple conversion factor (based on the number of reactants) gets
to the correct units.