crappy builder
meaningful aggregate
finalize types.js
add play.js
type class version
delete old javascript skunkworks attempt
made classes for each field type, add aggregation for array, more methods for Counter
added a script and test json file for feature preview
remove useless file
added the output file after parsing test.json
Merge pull request #2 from imlucas/classify

Class-ify fields using coffeescript, able to generate AST