* Interface Changes
* The Log view only offers ''Diff between revisions of a path''
* The Browser view is the one to use for ''Arbitrary diffs''
* As an added bonus, the Browser now offers the possibility to
download a zip file containing everything below the directory
being browsed (at the current revision). This would solve #238.
* API Changes
* the Repository.get_diffs method is now supposed to simply yield
{{{(old_node, new_node, kind, change)}}} tuples
* In the Diff view, I hopefully got right the usage of (path,rev) vs.
(created_path, created_rev): the former information is used
for creating hrefs for Trac, and the created_rev information
is simply displayed. This is similar to what the Browser does.
What's remaining:
* there's the ''View previous diff'' stuff to fix
* I'll try to refactor the Diff.py and the Changeset.py
in order to share more code
