Heine

#346450 by snoble, Damien Tournoud, Dave Reid, Josh Waihi, neilnz: the 'length' Schema API property was documented to be only applicable to string types but was applied to others nonetheless; should only apply to char, varchar and text

#334826 by maartenvg, Dave Reid, brianV: when editing an anonymous comment, the uid was set to NULL, which is not valid as a database value for the uid; set to zero

#315047 by Island Usurper, Crell, brianV, Josh Waihi: names of database columns were not escaped when changed; caused problems with using reserved words

#232321 by munzirtaha, brianV: There is no body field in the node table, so fix misleading example in database.inc to query for node.nid instead

#395132 by jhodgdon: Fix phpdoc comment on poll_node_form_submit(); there is no hook_submit() in Drupal 6 and this gets called based on the form's key

#302240 by fago: forms were rebuilt on validation errors and when #ahah was used #cache was turned on, but form storage was not actually stored