tigefa4u projects Trac

Added alternative syntax for short TracLinks:
{{{
<wiki:this is the target> or <http://example.org/That page(category)>
}}}

Closes #7386.

0.12dev: Created the default-disabled `tracopt` package, and moved the `authz_policy` component from `sample-plugins` into `tracopt.perm`.

Also, handle the absence of the `configobj` package and log an error in that case.

0.12dev: Ensure that a component "implementing" an interface more than once (for example indirectly through inheritance) isn't registered more than once for that interface.

I would have replaced the use of a list with a set, but the log viewer relies ont he fact that it is registered after the changeset viewer. I'll try to investigate that as well.

Related to #8767.

Added missing svn:ignore '*.mo' on some LC_MESSAGES folders.

TracMercurial for 0.12: fix for simpler API in [8677]

Patch by Remy Blank on #8731.

TracMercurial for 0.12: clarifications of wording regarding repository management (the hg repositories themselves are not affected by trac-admin operations...)

TracMercurial for 0.11: update README file to refer to TracMercurial, plus some ''multirepos'' specific notes.

TracMercurial for 0.11: update README file to refer to TracMercurial.

MultiRepos: Merged with 0.12dev [8662:8687/trunk].

0.12dev: Always make the "Ticket #..." heading on the ticket page a link. Thanks to Joshua Hoke for the patch.

Closes #8765.