Allow relocating yang tool location
Allow relocating yang tool location

Change-Id: Ic8a166aa1161f57f94c11d824f22bfc7154bcb77

opennetworkinglab/onos,oplinkoms/onos,gkatsikas/onos,gkatsikas/onos,opennetworkinglab/onos,oplinkoms/onos,osinstom/onos,kuujo/onos,opennetworkinglab/onos,osinstom/onos,kuujo/onos,gkatsikas/onos,oplinkoms/onos,gkatsikas/onos,oplinkoms/onos,osinstom/onos,osinstom/onos,opennetworkinglab/onos,oplinkoms/onos,oplinkoms/onos,opennetworkinglab/onos,kuujo/onos,gkatsikas/onos,kuujo/onos,kuujo/onos,kuujo/onos,gkatsikas/onos,kuujo/onos,osinstom/onos,oplinkoms/onos,opennetworkinglab/onos