run.bash is calling behave instead of behave-parallel

[c-mart]

@jerry57 and I have both reproduced this problem on OS X and Linux. When the test suite runs, steps 1 and 2 are skipped with:

behave: error: unrecognized arguments: --processes --parallel-element scenario features/check.feature

A workaround is to separately clone https://github.com/hugeinc/behave-parallel and alias "behave" to behave-parallel/bin/behave-parallel. Or, run a feature at a time like this:

../behave-parallel/bin/behave-parallel --processes 2 --parallel-element scenario features/launch.feature

We suspect something with the virtualenv isn't being set up properly.