Changes

<ref name=LaterTechnicalClarificationNeededTechnicalClarificationNeeded>Later. Should be implementable, but clarification needed on how it works.</ref><ref name=LaterRestrictionsRequiredRestrictionsRequired>Later. Function can be made available partially. For example: Editing the name, description or even IP of a VM may be always possible, while changing the memory and/or disk size depends heavily on the state of the VM.</ref><ref name="UserCanTakeAction">A user connected to the VM can take this action despite it is unavailable in the web-interface.</ref>