Organized imports for main classes

Change-Id: I3b05d7f289706aef04019a820be9989f8fb54945
diff --git a/src/main/java/net/onrc/onos/core/intent/runtime/PathCalcRuntime.java b/src/main/java/net/onrc/onos/core/intent/runtime/PathCalcRuntime.java
index e4ff80c..9314959 100644
--- a/src/main/java/net/onrc/onos/core/intent/runtime/PathCalcRuntime.java
+++ b/src/main/java/net/onrc/onos/core/intent/runtime/PathCalcRuntime.java
@@ -6,16 +6,16 @@
 import net.onrc.onos.core.intent.ConstrainedBFSTree;
 import net.onrc.onos.core.intent.ConstrainedShortestPathIntent;
 import net.onrc.onos.core.intent.ErrorIntent;
+import net.onrc.onos.core.intent.ErrorIntent.ErrorType;
 import net.onrc.onos.core.intent.Intent;
+import net.onrc.onos.core.intent.Intent.IntentState;
 import net.onrc.onos.core.intent.IntentMap;
 import net.onrc.onos.core.intent.IntentOperation;
+import net.onrc.onos.core.intent.IntentOperation.Operator;
 import net.onrc.onos.core.intent.IntentOperationList;
 import net.onrc.onos.core.intent.PathIntent;
 import net.onrc.onos.core.intent.PathIntentMap;
 import net.onrc.onos.core.intent.ShortestPathIntent;
-import net.onrc.onos.core.intent.ErrorIntent.ErrorType;
-import net.onrc.onos.core.intent.Intent.IntentState;
-import net.onrc.onos.core.intent.IntentOperation.Operator;
 import net.onrc.onos.core.topology.NetworkGraph;
 import net.onrc.onos.core.topology.Path;
 import net.onrc.onos.core.topology.Switch;