Added more providers/of modules and javadocs.
Split onos-core feature into onos-api and onos-core.
diff --git a/providers/of/host/src/main/javadoc/org/onlab/onos/provider/of/host/impl/package.html b/providers/of/host/src/main/javadoc/org/onlab/onos/provider/of/host/impl/package.html
new file mode 100644
index 0000000..fda13cc
--- /dev/null
+++ b/providers/of/host/src/main/javadoc/org/onlab/onos/provider/of/host/impl/package.html
@@ -0,0 +1,3 @@
+<body>
+Provider that uses OpenFlow controller as a means of host discovery and tracking.
+</body>
\ No newline at end of file