tigefa4u projects Trac

Added tests for the `SubversionRepository.previous_rev/next_rev` methods using and additional path argument

Added a file containing accentuated characters to the test svn repository, in preparation for the unicode fixes.

Depend on python2.3-subversion without versioned dependency

WorkFlow:

* Purged last remnants of separate ticket modules.
* Fix for typo in field validation.
* Fix for default values in select/radio controls.

Applied patch for #2951, which adds a {{{add_javascript}}} method to {{{trac.web.chrome}}}.

Make the {{{Markup}}} class assume UTF-8 encoding when it gets passed non-unicode strings (which ideally shouldn't be happening, but hey). Should fix #2905.

Fix the source file syntax highlighting under Emacs by adding an extra `"` character (the one on the line above is not seen by emacs because of the `#` character preceeding it)

remove some debuggin statements that slipped into [3081]

tracd:
* reimplement `--base-path` from [3050] and [3053] as WSGI middleware
* add `--protocol` option for speaking the "scgi" or "ajp" protocols
(requires [http://www.saddi.com/software/flup/ flup])