Add test_app project so we can test stuff
Upgrade core.async

Use a patched version that supports process.nextTick and doesn't break
when you use (catch :default)
Add tests, move go-try-catch to go-catch, etc

Lots of changes induced by having tests
Simplify loging
Add tests for more parse data access functions

Also implement ILookup, IEquiv and IHash so we can use keyword lookup, =
and use parse objects as keys in hashes
Bump core.async dep for property access bugfix