Fixes #2423 : missing directory/files in fusiondirectory-plugins-system
rpm

The config/systems/ directory was not declared in the correct RPM. It
was in the sympa plugin.

The directory is now moved into the correct plugin.
Fixes #2485: config/class_mailPluginConfig.inc not in the correct RPM.

Move the config/class_mailPluginConfig.inc into the plugin-mail RPM
which is the correct place for this file.
Since PHP 5.3, the mhash library is deprecated. However, the FD code
didn't handle that. This patch allows to use the hash feature (which is
the new standard) if the mhash function is not detected.
Backport patch for bug #2449. With this patch, it is now possible to
delete a user with SAMBA attributes on the LDAP.
Update changelog for 1.0.6-2.el6