Multi endpoint

closes #35
Security properties:
VM_WEB_OPERATION
VM_RPC_OPERATION

For Web operations new checkVmWebOperation() returning asyncronous auth_response (java script single thread non-stop), used in the initVMBrowser to get the current web user properties and authorization to Stop VM, or unauthorization. If authorized Stop button is displayed. Additionaly, the stoppage operation is also checked have the security property at WMS/VirtualMachineManagerHandler.py