tigefa4u projects Trac

`[svn:externals]` targets in TracIni may now contain "%" characters.

Fixes #6785.

The (diff) link in ticket change entries for ticket description changes should contain the ticket version corresponding to the "new" content.

Fix #6664.

Fix for `htdocs:` linking when linking to an anchor in a file.

Closes #5643.

buzilla2trac: fix datetime to epoch conversion which was done in a non-portable way.

Thanks to xenolinguist for the patch. Should fix #6794.

E-mail obfuscation in reports:
* 'Owner' field.
* All 'group by' headers in case it is grouped by owner containing e-mail usernames.

See #6748.

E-mail obfuscation of owner if used as group by clause.

Fix for the query part of #6748.

WikiRename branch synced with [6425:6490/trunk]

WikiRename: forgot to add the wiki_rename.html template itself. And here's how it should have been at r6424.

WikiRename: forgot to add the wiki_rename.html template itself. Here's how it should have been at r6423.

Synchronise with trunk.