working on re-sugaring
extracted trees
Tree needs to be in common

… since ClosedReactant depends on it.
Fixes build before changing focus

(new focus: automatons)
* package macros => criojomacros (avoid name collision with scala.reflect.macros)
* removed TupleTrees for now
* correct macro expansion
* macro tests marked as pending
* basis for future work on macros
Merge pull request #42 from Geogi/dev

Dev