Submodule lib/troopjs-core 18dec46..05909c7:
  > Same idea as in d2874434453ac607af42a0c50feda4683a4a701c again - don't type check args.
  > Don't do _any_ checking on return types from handlers, just let whoever passed it make sure it's usable. See troopjs/troopjs-core#116
Change grunt plugin in anticipation of grunt 0.7
Bumped prerelease.