Fixed a bug in the dtml-var tag handling of the 'null' attribute. Before null would only work correctly if there was also a 'fmt' attribute. Now null correctly works with non-zero false values when there isn't a 'fmt' option.

break for some older DAs.

it's absence was causing an exception.  (Will be durn hard to make
tests for this kind of thing, sigh.)

(This is in the trunk, the last was in the 2_2 branch.)

Fixed Product Help icon (I think), cleaned up Help Topic add form (still doesn't have help) and added a class init for the HelpSys and ProductHelp classes.

measure size in bytes.

copy of the upload data being kept by cgi fieldstorages :(

method of GlobbingLexicon.

'manage_main', 'manage_uploadForm' 'manage_historyCopy',
'manage_beforeHistoryCopy', and 'manage_afterHistoryCopy' to 'Change
DTML Documents'. This is needed to make view filtering work properly.

'manage_main', and 'manage_uploadForm' to 'Change DTML Methods'. This
is needed to make view filtering work properly.

CopySupport

performing a redirect.  This means that standard_error_message documents
that redirect now need to add a "lock=1" argument to redirect calls.

Converted some comments to doc strings.
Got rid of some no=longer-used code.

check, errors in __of__ methods led to core dumps.

in user objects.

private methods of base classes starting in DocumentTemplate,
since it will not be able to use the new security assertion
machinery without being dependent on Zope.