tigefa4u projects Trac

Testing: merge 5578-5588 from trunk

Testing: fix newlines in posted content.

Testing: add notes for compat.

Follow-up to [5587]: move `xml:space` declaration down to the wikipage div.

Forgot one instance of `xml:space` for #3925.

Fix for #3295 (preserving empty lines in wiki code blocks). The approach chosen is a workaround until the wiki formatting engine has been updated to emit markup event streams instead of big blobs of text. It requires adding an `xml:space="preserve"` attribute to the containing element of any `wiki_to_html()` expression in the templates. These attributes do make it through to the output, but that shouldn't do any harm. They'd go away if we simply serialized to HTML.

Allow full configuration of the notification subject using a template.

As an example, the following is the template for the OLPC tracker:
{{{
ticket_subject_template = #$ticket.id ${ticket['priority'][:4].upper()} ${ticket['milestone'][:7] or '-'}: $summary
}}}

Revert r5582. Better discuss this on Trac-dev first, no?

Use the expand/collapse icons we already had (and that are less cheesy, if I may say so) on the ticket query and browser screens.

Require Genshi 0.4.1 to be able to fix the ticket RSS conversion unit test.