Extract AST classes for use in other ruby tools

[vovimayhem]

Hi! I've just stumbled upon this gem, and I'm interested in forming a Blueprint AST from rspec request examples, as the 'rspec-blueprint' gem is very outdated.

Right now, my strategy was to form an AST with ruby hashes, and use matter_compiler to create the blueprints...

I'm including 'matter_compiler' into my project, however I can't require the matter_compiler AST classes into my code, as it seems that the code in this gem was created only for the purpose of parsing YAML and JSON via command line and output the results.

I'm forking this project in order to send a PR.

[vovimayhem]

OK nevermind... I was trying to require "matter_compiler/blueprint_ast".... sorry me bad.