Valid values are 'es3' and 'es5'.
es3: perform reserved words quoting, don't use defineProperty
es5: default, don't do the above, class methods non-enumerable
We were doing some preprocessing for module options in the command line. Since
we also expose the same API via react-tools (and JSXTransformer), we need to do
the same processing from the API. So just move it all to the same place.
We will continue using `bin/jsx-internal`, well, internally.
Note that this version no longer respects `@providesModule`, and it
doesn't do anything special with constants like `__DEV__`, so we can no
longer get to claim that `bin/jsx` can be used to build the core.
I'm happy about this, personally, because it demonstrates the flexibility
of Commoner.
No longer injecting __MOCK__ as a global constant (it's just a config
property now).
Turns out the `grunt jsx:debug` task was never necessary for tests.
