updated build scripts to integrate with twosigma internal build
cannot remove sub-package META-INF
Merge remote-tracking branch 'origin/master' into ildipo/internalstuff
Groovy evaluator is separated from its REST API.
Java and Groovy now have execution interrupt.
Merge branch 'ildipo/internalstuff' of https://github.com/twosigma/beaker-notebook into ildipo/internalstuff
updated external interface to better support internal plugins
Merge branch 'origin/master' into ildipo/internalstuff
Merge pull request #860 from twosigma/ildipo/internalstuff

Ildipo/internalstuff