Add float as a myria pseudo-type
Comment cleanup
Merge remote-tracking branch 'origin/master' into andrew_cast
Add a function to map external types to internal types
Move myrial type map to myrial/parser.py
cleanup of types.py
Add cast operator
Convert FLOAT_CAST to CAST
Add casting syntax to myrial
Test of string cast
Test of float cast
Fix string conversion for type operator
JSON compilation for Cast operator
Get rid of unnecessary float cast
Refer to raco types by python name instead of string literal.
Merge branch 'master' into andrew_cast
Merge pull request #237 from uwescience/andrew_cast

Implement cast for basic myrial types