Erjang update

With this set of changes, we can get up to date on erjang / kilim integration.  My erjang-buddy eriksoe will also send you a pull request based off current kilim/kilim, so we should be all in sync.  

I have not tested performance, but I think its important to get these things in sync so we can share bug fixes going forward.  I've also been hunting down a weaving bug having to do with exception handlers inside exception handlers (I think) but have not found it.  Reproducing that one is fairly involved.

Cheers,

Kresten