Correct state detection for LXC 1.0

Hi,

I'm using vagrant-lxc with  lxc version: 1.0.0.alpha3
Due to changes in lxc-info output plugin can't properly detect container state.

===sample out===
lxc-info -n etbase-lxc-353-1387943533
Name:           etbase-lxc-353-1387943533
State:          RUNNING
PID:            14258
IP:             192.168.14.201
CPU use:        208.29 seconds
BlkIO use:      963.90 MiB
Memory use:     852.58 MiB
Link:           veth6841NO
 TX bytes:      10.29 MiB
 RX bytes:      92.95 MiB
 Total bytes:   103.24 MiB