Merge pull request #80 from jmalloc/master

Updated to rasta 0.1.2.
Merge pull request #84 from jmalloc/master

Fixed #81
Merge pull request #86 from jmalloc/master

Fixed issue with closures in AndType (#81, #85)
Updating Typhoon's own validators.
Merge pull request #87 from jmalloc/update-validators

Updating Typhoon's own validators to use latest rasta output.