tigefa4u projects Trac

i18n: be more robust when handling bad translations with wrong keyword parameters.

Closes #7679.

MultiRepos: Refactored the `trac-post-commit-hook` into a sample plugin `commit_ticket_update.py` using `IRepositoryChangeListener`.

* Added an `old_changeset` argument to the `changeset_modified()` hook, providing the old changeset metadata if available (or `None` otherwise).

Part of #7723, closes #5189.

Image macro: add `margin` parameter (only numerical values, px implied, as for `border`)

Image macro: slight refactoring of the argument parsing (also allows specifying directly ''center'' as an argument).

Image macro: fix bottom/top and add middle

Add support for `align=center` argument for the Image macro. Implements #5223.

Make the default logos use a transparent background. Patch contibuted by Shun-ichi Goto on #4820.

MultiRepos: preliminary fix for the ISearchSource implementation for changesets.

Closes #8203.

TicketClone sample plugin should use a POST in order to be able to clone tickets containing a big description.

This reverts r6322 but adds a ''preview'' parameter, which is another way to avoid the problem originally addressed in that changeset.

Closes #7839.

MultiRepos: fix Repository Index so that it can be sorted by date even in the presence of repository entries having errors.