windows config files admin-only access

Windows configuration files were accessible by
normal users until now.

Now we use the NSIS AccessControl Plugin
(http://nsis.sourceforge.net/AccessControl_plug-in)
to limit the access to the Administrator only.

This also means that if you want to edit the
config file, this has to happen as administrator.

Fixes #208: Look into possibility to limit access rights on %APPDATA%/Bareos to administrators only.

Signed-off-by: Marco van Wieringen <marco.van.wieringen@bareos.com>
windows plugin directory created and set in cfg.

The windows installer now creates also a directory
for plugins, ususally C:\Program Files\Bareos\Plugins

Also, this directory is set in the plugin directory comment
in the default bareos-fd.conf

Also, we now have a "compatible=no" comment in the fd.conf
that tells the user that for new bareos features this has to
be set to no to disable the Bacula compatible mode.

Signed-off-by: Marco van Wieringen <marco.van.wieringen@bareos.com>
Explicitly order by JobId for rerun.

We should rerun jobs in the order the JobIds are arranged so explicitly
order the JobIds we select.