[acp] Main configuration ACP

Begin work on the ACP, for now the main configuration page which sets a
development configuration value defining which forum shall be used as
destination forum. This will be replaced later with the proposed system
where forums will define their report destination forum.
Merge branch 'acp' into develop
Merge branch 'acp' into core
[core] Post reports

Begin work on the posting part of this MOD. Currently only post reports are supported
and everything is really static.
[core] PM report to topic.

Reported PMs get posted as well
[acp] Main configuration ACP

Begin work on the ACP, for now the main configuration page which sets a
development configuration value defining which forum shall be used as
destination forum. This will be replaced later with the proposed system
where forums will define their report destination forum.
[core] Post reports

Begin work on the posting part of this MOD. Currently only post reports are supported
and everything is really static.
[core] PM report to topic.

Reported PMs get posted as well
[core] Introduce post templates.

From now on administrators can define how the report posts are formatted, for PMs and
post reports can be used different templates. As well introduces a first set of tokens
that can be used to display different kinds of information in the posts.
[core] Title token

Introduce a {TITLE} token, this token resolves to the subject of the reported
post or PM
[core] Drop hardcoded template

Remove the hardcoded post template from the core files
[core] Introduce post templates.

From now on administrators can define how the report posts are formatted, for PMs and
post reports can be used different templates. As well introduces a first set of tokens
that can be used to display different kinds of information in the posts.
[core] Title token

Introduce a {TITLE} token, this token resolves to the subject of the reported
post or PM
[core] Increase admin possibilities

This commit adds more possibilities for the admin to control this MOD. He can now
access a new token {REPORTER} (just the username of the reporter) {REPORTER_FULL}
(the full profile link to the profile of the reporter). You can now also set the
topic title that is used based upon its a pm or post report. Tokens can be used
in the titles as well.
Also some overall cleaning in the acp template file.
[core] Unify report fetching.

Unify the way the data from reports is fetched, when the required data
is selected based upon the reported post of pm id.
Merge remote branch 'erik/core' into develop
[feature/forum-designate] Begin the forum designate feature.

Some initial work on the forum designate feature. This feature allows an administrator
to decided which forum will be used for the report posts on a forum basis. If none is
selected the default destination forum will be used, this default forum can be set
through the MODs own ACP page.
[feature/forum-designate] Add diff.

This feature requires some core edits to allow us to change the forums ACP pages,
the attached diff includes all the required changes
Merge branch 'feature/forum-designate' into develop
[acp] Lingual change

Change the wording a little bit. This forum ID is now the default destination forum.