Ross Lawley 050542c29b Added InvalidDocumentError
Ensures defined documents are valid and users don't override core methods
by accident.

fixes #275
2011-09-09 17:36:40 +01:00
..
2011-09-09 14:33:27 +01:00
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2011-09-09 17:36:40 +01:00
2011-09-09 05:52:43 -07:00
2011-06-07 15:14:41 +01:00
2009-12-19 16:04:05 +00:00
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