Added application ID store; both trivial and distributed variants.
diff --git a/apps/proxyarp/src/main/java/org/onlab/onos/proxyarp/ProxyArp.java b/apps/proxyarp/src/main/java/org/onlab/onos/proxyarp/ProxyArp.java
index 431c5d7..96e804f 100644
--- a/apps/proxyarp/src/main/java/org/onlab/onos/proxyarp/ProxyArp.java
+++ b/apps/proxyarp/src/main/java/org/onlab/onos/proxyarp/ProxyArp.java
@@ -25,8 +25,8 @@
 import org.apache.felix.scr.annotations.Deactivate;
 import org.apache.felix.scr.annotations.Reference;
 import org.apache.felix.scr.annotations.ReferenceCardinality;
-import org.onlab.onos.ApplicationId;
-import org.onlab.onos.CoreService;
+import org.onlab.onos.core.ApplicationId;
+import org.onlab.onos.core.CoreService;
 import org.onlab.onos.net.packet.PacketContext;
 import org.onlab.onos.net.packet.PacketProcessor;
 import org.onlab.onos.net.packet.PacketService;