Renamed devicemanager, flowprogrammer, linkdiscovery and util packages

net.onrc.onos.ofcontroller.devicemanager.* => net.onrc.onos.core.devicemanager.*
net.onrc.onos.ofcontroller.flowprogrammer.* => net.onrc.onos.core.flowprogrammer.*
net.onrc.onos.ofcontroller.linkdiscovery.* => net.onrc.onos.core.linkdiscovery.*
net.onrc.onos.ofcontroller.util.* => net.onrc.onos.core.util.*

Change-Id: Iaa865af552e8fb3a589e73d006569ac79f5a0f08
diff --git a/src/main/java/net/onrc/onos/apps/forwarding/IForwardingService.java b/src/main/java/net/onrc/onos/apps/forwarding/IForwardingService.java
index 78bf41c..375da88 100644
--- a/src/main/java/net/onrc/onos/apps/forwarding/IForwardingService.java
+++ b/src/main/java/net/onrc/onos/apps/forwarding/IForwardingService.java
@@ -3,7 +3,7 @@
 import java.util.Collection;
 
 import net.floodlightcontroller.core.module.IFloodlightService;
-import net.onrc.onos.ofcontroller.util.FlowPath;
+import net.onrc.onos.core.util.FlowPath;
 
 /**
  * Temporary interface that allows the Forwarding module to be