Antioch now uses kg/mol for molor mass.
Updated kinetics regression for Antioch.

This is because of the slight change for the universal gas constant
conversion to calories (see discussion in #24).
Update regression test for new Antioch

Has to do with updated gas constant value. See discussion in Antioch
issue #24.
Update regression test for new Antioch

Has to do with updated gas constant value. See discussion in Antioch
issue #24.
Finished updating reacting flow regression tests

Has to do with updated gas constant value. See discussion in Antioch
issue #24.
Bumped minimum Antioch version

This is due to the 0.2.0 release of Antioch which updated the
conversion factor of the gas constant which, in turn, required
updating the "gold" regression test restarts.
Merge pull request #133 from pbauman/antioch_units_update

Antioch units update