Merge pull request #639 from filin20/develop

Update roundcube to 0.9.3
Replace memcached logo with original one
Add erlang
Add erlang native
Add ejabberd
Add ejabberd spk
Fix bitlbee and dependencies cross compile
Update unrar to 5.0.11
Update sabnzbd to 0.7.16
Add rtorrent logging
Add ca certs to rtorrent
Set rtorrent umask
Add open_basedir instructions to wizard for rutorrent
Bump rutorrent revision
Update owncloud to 5.0.11
Set file modes for rutorrent web plugins