Made method Connection.dispatch protected according to Cloudstack request.
Made method Connection.dispatch protected according to Cloudstack request.

Signed-off-by: Konstantina Chremmou <a7d1f757a659045fb6db8c1e3849a1c8ad00b97a@citrix.com>

stephen-turner/xen-api-sdk,agimofcarmen/xen-api-sdk,stephen-turner/xen-api-sdk,cheng-z/xen-api-sdk,stephen-turner/xen-api-sdk,xapi-project/xen-api-sdk,kc284/xen-api-sdk,kc284/xen-api-sdk,jonludlam/xen-api-sdk,xapi-project/xen-api-sdk,xapi-project/xen-api-sdk,stephen-turner/xen-api-sdk,jonludlam/xen-api-sdk,cheng-z/xen-api-sdk,kc284/xen-api-sdk,agimofcarmen/xen-api-sdk,agimofcarmen/xen-api-sdk,cheng-z/xen-api-sdk,kc284/xen-api-sdk,xapi-project/xen-api-sdk,jonludlam/xen-api-sdk,kc284/xen-api-sdk,stephen-turner/xen-api-sdk,kc284/xen-api-sdk,agimofcarmen/xen-api-sdk,xapi-project/xen-api-sdk,jonludlam/xen-api-sdk,cheng-z/xen-api-sdk,stephen-turner/xen-api-sdk,xapi-project/xen-api-sdk