adding first shot at native query compiler/interpreter
switching branches
added interpreter tests, hacked together lots of stuff
removed un-used code, ported tests over to use new query engine, ported core code over to use new query engine, added more functions
commented out some test cases
ported web build over to use new query engine
ported Ti build over to use new query engine, fixed tests, bumped npm package version
merging changes from ticket_7 branch
updating Ti examples to reflect new code, fixing inaccuracies in README