tigefa4u projects Trac

Moved the declaration of some config options to where they are actually being used.

spam-filter: another Akismet fix and import cleanup

spam-filter: fix some breakages in the Akismet filter during plugin refactoring

Moved implementations of basic and digest authentication to `trac.web.auth`.

Follow-up to r2536, show ''(root)'' as the path name in the changed file listing, when there's a property change on the root. Finalize the work done on #2369.

WikiFormatting improvements for numbered lists:
* lists can be restarted at a given number (implements #2446)
* numbered lists can use letters or roman numerals (implements #1117)
* added unit tests

Plus moved the code for definition lists to its place,
matching the order given by the regexps.

Typos in trac.web.href.Href docstring spotted and fixed by Tim Hatch. Closes #2761.

The `Chrome` component `IRequestHandler` now avoids any unecessary database query.

This way, no chrome request will ever fail due to a `database lock` error, which happens when a write operation is being performed by another `IRequestHandler`s. This fixes #3040.

Also, the overall speed of page rendering is much improved, as a typical request (e.g. `/project/timeline`) typically translates into nearly 20 `GET /project/chrome/*` secondary requests.

Fixed unicode problems when using the PyPgSQL postgresql driver. Closes #3013.

Converted HTTP authentication in [wiki:TracStandalone tracd] to WSGI middleware. Also made authentication completely optional: if the option is not provided, a request handler such as one for form-based authentication can still perform the authentication. Closes #3036.