tigefa4u projects Trac

Fixed ticket conversion tests, better documentation for `convert_content()`
method and no longer silently drop and log exceptions inside converters.

Added request filtering interface `web.api.IRequestFilter` loosely based on
code from Steve Traugott. Also added `config.OrderedExtensionsOption`.

Fix URL generated for inline images from the repos.

Fix default value for `downloadable_paths` option.

WorkFlow: Merged log:trunk@...:3353

PermissionPolicy: Merged log:trunk@...:3353

Fix the `ImageMacro` doc w.r.t style arguments (fixes #3184)

Also cleaned-up the way the !ImageMacro formed some of the hrefs.
This in turn resulted in some cleanups in the Formatter
and in its associated tests.

Follow-up to r3350, needed for the OutlineFormatter (as `out` is None in that case)

Move the !InterWikiMap class in its own file.

Reimplemented the quickjump feature by reusing the available TracLinks syntax.

First, this avoids the duplication of the regular expressions for tickets, wiki page names, etc.
Second, we gain the ability to quickjump to log ranges, revisions defined using `rXYZ` (#2881) and all the link resolvers that were not previously considered (attachment, query, log, etc.)

Likewise, this automatically extends the quickjump feature for TracLinks defined by the `IWikiSyntaxProvider` plugins (provided they return `Element`s objects with a `href` attribute, typically `html.A(href=...)`).

This required a small refactoring of the Formatter, a step in the direction of separating the parsing and the formatting phases in the Wiki engine.