#3174 Added handling of gateway groups in openvpn_restart
#3174 Handling of gateway groups in openvpn_restart()

If the underlying vip of a gateway group that an openvpn client is bound to is in backup mode then the client should not start.
Merge pull request #790 from shahidsheikh/RELENG_2_1

 #3174 Added handling of gateway groups in openvpn_restart