tigefa4u projects Trac

Final 0.10.3-1 Debian release package

0.10.3dev: make sure the repository path is converted to an unicode string, and log the repository_dir changes when detected.

0.10-stable branch: Bumping version number.

Tagging trac-0.10.3

0.10-stable branch: Preparing the 0.10.3 release.

Added dpatch dependency

New release candidate debian package

WikiContext: some semantic changes for relative wiki links:

1. `[/path]`: path is now relative to the Trac project (suggested by Tim Hatch)
2. `[//path]`: path is now relative to the Project URL (can be a parent URL for the Trac project itself, see `Context.local_url`)
3. `[..]`: links to the "parent" resource within the current pseudo-hierarchy (e.g. in the wiki)
4. `[./subpage]`: likewise, this links to a "sub" resource
5. `[../sibling]`: this links to a "sibling" resource

Added some unit tests and a handful of bugfixes.

WikiContext: introduce new `trac.wiki.api.Context` class to be used when rendering wiki content. Should fix #3711, #3842, #4144, #3936, #3958, #4139 and probably a few others.

Starting WikiContext working branch