Merge pull request #4 from reneschuster/master

Plugin RoundcubePlugins: initial commit
Merge pull request #5 from reneschuster/master

Plugin RoundcubePlugins: small fix
Merge pull request #6 from reneschuster/master

Plugin Postscreen: initial commit
Merge pull request #7 from reneschuster/master

Plugin RoundcubePlugins: docu changes
Merge pull request #8 from reneschuster/master

Plugin ClamAV: initial commit
RemoteBridge plugin: Fixed: Routes are never returned
Merge remote-tracking branch 'origin/master'
Merge pull request #9 from reneschuster/master

Plugin ClamAV, Postscreen, RoundcubePlugins: code optimization
Merge pull request #10 from reneschuster/master

Plugin ClamAV, Postscreen, RoundcubePlugins: small change on initialization
Plugin OwnDDNS: Initial Commit
Plugin RoundcubePlugins: Added new plugins calendar, dkimstatus, logon_page, pdfviewer and tasklist and changed some plugin functions.