Added a slew of package.html javadocs.
diff --git a/net/api/src/main/java/org/onlab/onos/net/topology/TopologyProviderService.java b/net/api/src/main/java/org/onlab/onos/net/topology/TopologyProviderService.java
index 0841700..b28df4e 100644
--- a/net/api/src/main/java/org/onlab/onos/net/topology/TopologyProviderService.java
+++ b/net/api/src/main/java/org/onlab/onos/net/topology/TopologyProviderService.java
@@ -1,6 +1,6 @@
 package org.onlab.onos.net.topology;
 
-import org.onlab.onos.provider.ProviderService;
+import org.onlab.onos.net.provider.ProviderService;
 
 /**
  * Means for injecting topology information into the core.