Fix publishing on a nodetree_virtual pubsub tree.
Merge pull request #84 from cstar/patch-1

Fix publishing on a nodetree_virtual pubsub tree.
Fixing ejabberdctl permissions check
Fixing EJAB-1583 in ejabberd_odbc
mod_privacy exceptional case handling
Fixing EJAB-1581 in mod_offline

Not ideal but works
Remote Roster patch

From http://comm.unicate.me/blog/ejabberd-2-1-11-and-remote-roster
Adding an index on privacy_list_data (EJAB-1583)
ejabberdctl: support Mnesia command-line options

Through MNESIA_OPTIONS
Adding ejabberd-modules as a submodule
Updating ejabberd-modules