edge case when needle is "" would cause runtime errors...whups
Change makefile to pass through exit code for Travis
compile tests for edge cases of string-containment
missing calls to mk-str in runtime, and new tests to catch them in the future
improving error reporting from within get-raw-field, such that errors
in custom _torepr methods don't trigger infinite looping (an error
causes _torepr to be called, which causes an error, the reporting of
which in turn calls _torepr again...)
minor UI fix
sticker
Merge branch 'master' of github.com:brownplt/pyret-lang
Merge pull request #117 from ejcaruso/makefile-blues

Change makefile to pass through exit code for Travis
bg
Merge branch 'master' of github.com:brownplt/pyret-lang