tigefa4u projects Trac

FlexibleWikiPageNames branch: this branch will focus on implementing the flexible WikiPageNames scheme that can currently be found in InterTrac

InterTrac: merged changes from trunk (log:trunk@...:2361)

InterTrac: removed the TracDiff feature from that branch.

This branch will now only contain the InterTrac, InterWiki
and extended InterWiki links (see #1414) as a diff on the trunk
(currently on r2319).

Clean-up of branches/cboos-dev

make `Component.__getattr__` show the class name as well as the attribute name when the attribute does not exist

Applied a slightly modified patch from Emmanuel Blot that makes trac-admin use the PermissionStore API. Closes #2223.

Prevent the connection to be garbage-collected before getting used. The problem was introduced by r2355 and affected pysqlite-1.1.x, but not pysqlite-2.x. Closes #2230.

Apply patch for bugzilla2trac contrib script provided by asmodai. Closes both #2061 and #2229.

When Trac uses SQLite3/PySQLite2 for its DatabaseBackend, concurrent writes
were not handled well: this could lead to persistent database locks
and, occasionally, to crashes (see #2170).

With the present changes, the issue is fixed, ''provided'' the SQLite library
which is used was compiled in thread-safe mode.
This is always the case on Windows, but Linux users (and probably all Unix users)
will certainly have to recompile their SQLite package (3.2.7 preferred)
using the `--enable-threadsafe` configuration option.

Note that ''without'' a threadsafe SQLite, Trac ''will'' continue to work,
simply it will still be vulnerable to the abovementioned problem.

Finally, note that ''without'' this patch, Trac simply won't work with
a threadsafe SQLite binary on Linux (see #2196).

The browser (and the log revision) module now return a proper error message
when the requested path doesn't exist at the specified revision.

Additionally, from that error page, the user can follow a link to the
revision log in ''path history'' mode that will show him the delete operation
which eventually removed the requested path from the repository,
or another error message stating that the requested path doesn't exist in any older
revision in the repository.