Current stable version of the RMBTControlServer

change in interface: /history sends classification (needed for iOS)
newly added: /opentests/Oxxx, /opentests/search?, /de/Oxxx/forumsmall.png
new files: OpenTestResource, OpenTestSearchResource, ImageExportResource

Please double-check file-locking in ExportResource concerning concurrency-issues and other changes to existing codes as shown in the "Files Changed"-Tab. 

best regards,
Thomas