change to nethserver-roundcubemail for roundcube 1.0.0

* Sun Oct 19 2014 Stephane de Labrusse <stephdl@de-labrusse.fr> - 1.0.2-1-ns6
- Upgrade to roundcubemail 1.0.2-1 - Bug #2902 [NethServer]
- Config.inc.php is now templated with several files
- Roundcubemail can be restricted to the local network,
- open to the WWW by default (public/private) - Bug #2886 [NethServer]
- New DB command to allow plugins in config.inc.php
- New templates.metadata for protecting Config.inc.php (0640 root/apache)

Some works to share, For now I have not implemented the ldap adressbook since it needs some mandatory dependencies (nethserver-directory). I saw also that roundcubemail is  used  by DB design to look after an IMAP server on the localhost but nethserver-mail-server is not a dependency of nethserver-roundecubemail. That could be good to have no noises to install a webmail with the mail server