tigefa4u projects Trac

* less intrusive ''Diff'' panel in the Browser and the Log view
* the panel is not shown when browsing the ''root''
* more consistent specifications of path/revs
(don't try to use the created_path/created_rev information)
* Improved the display of the title for the Diff module
* added a ''Reverse Diff'' link in the Diff module,
to invert the '''from''' and '''to''' parameters
* while showing the diffs entries, show the created revision information
for the old and new files, not the global ''old'' and ''new'' revisions.
This is especially useful while diffing between branches,
so that one can see which side is the most recent on a file per file basis.