Stephen Bloch 753dfa3cb2 Fixed error messages, added tests for type errors.		2011-10-02 22:54:34 -04:00
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pictures
book-pictures.rkt
io-stuff.rkt
map-image.rkt	Corrected a few error messages.	2011-09-24 12:49:05 -04:00
tiles.rkt	Fixed error messages, added tests for type errors.	2011-10-02 22:54:34 -04:00