Increase time to call get slivers from 10 minutes to 15.
Increase time to call get slivers from 10 minutes to 15.


dreibh/planetlab-lxc-nodemanager,dreibh/planetlab-lxc-nodemanager,planetlab/NodeManager,planetlab/NodeManager,planetlab/NodeManager,planetlab/NodeManager,dreibh/planetlab-lxc-nodemanager