Added some package javadocs and corrected some wording in others.
diff --git a/core/json/src/main/java/org/onlab/onos/json/impl/package-info.java b/core/json/src/main/java/org/onlab/onos/json/impl/package-info.java
new file mode 100644
index 0000000..406641f
--- /dev/null
+++ b/core/json/src/main/java/org/onlab/onos/json/impl/package-info.java
@@ -0,0 +1,4 @@
+/**
+ * Implementation of JSON codec factory and of the builtin codecs.
+ */
+package org.onlab.onos.json.impl;
\ No newline at end of file
diff --git a/core/store/dist/src/main/java/org/onlab/onos/store/device/impl/package-info.java b/core/store/dist/src/main/java/org/onlab/onos/store/device/impl/package-info.java
index c1f5aad..572948e 100644
--- a/core/store/dist/src/main/java/org/onlab/onos/store/device/impl/package-info.java
+++ b/core/store/dist/src/main/java/org/onlab/onos/store/device/impl/package-info.java
@@ -1,4 +1,4 @@
/**
- * Implementation of device store using distributed distributed p2p synchronization protocol.
+ * Implementation of distributed device store using p2p synchronization protocol.
*/
package org.onlab.onos.store.device.impl;
diff --git a/core/store/dist/src/main/java/org/onlab/onos/store/flow/impl/package-info.java b/core/store/dist/src/main/java/org/onlab/onos/store/flow/impl/package-info.java
new file mode 100644
index 0000000..38d4efc
--- /dev/null
+++ b/core/store/dist/src/main/java/org/onlab/onos/store/flow/impl/package-info.java
@@ -0,0 +1,5 @@
+/**
+ * Implementation of the distributed flow rule store using p2p synchronization
+ * protocol.
+ */
+package org.onlab.onos.store.flow.impl;
\ No newline at end of file
diff --git a/core/store/dist/src/main/java/org/onlab/onos/store/host/impl/package-info.java b/core/store/dist/src/main/java/org/onlab/onos/store/host/impl/package-info.java
index 72a4ce4..a5f7727 100644
--- a/core/store/dist/src/main/java/org/onlab/onos/store/host/impl/package-info.java
+++ b/core/store/dist/src/main/java/org/onlab/onos/store/host/impl/package-info.java
@@ -1,4 +1,4 @@
/**
- * Implementation of host store using distributed p2p synchronization protocol.
+ * Implementation of the distributed host store using p2p synchronization protocol.
*/
package org.onlab.onos.store.host.impl;
diff --git a/core/store/dist/src/main/java/org/onlab/onos/store/link/impl/package-info.java b/core/store/dist/src/main/java/org/onlab/onos/store/link/impl/package-info.java
index c675f84..ab45e4f 100644
--- a/core/store/dist/src/main/java/org/onlab/onos/store/link/impl/package-info.java
+++ b/core/store/dist/src/main/java/org/onlab/onos/store/link/impl/package-info.java
@@ -1,4 +1,4 @@
/**
- * Implementation of link store using distributed p2p synchronization protocol.
+ * Implementation of distributed link store using p2p synchronization protocol.
*/
package org.onlab.onos.store.link.impl;
diff --git a/core/store/dist/src/main/java/org/onlab/onos/store/topology/impl/package-info.java b/core/store/dist/src/main/java/org/onlab/onos/store/topology/impl/package-info.java
new file mode 100644
index 0000000..ec719d0
--- /dev/null
+++ b/core/store/dist/src/main/java/org/onlab/onos/store/topology/impl/package-info.java
@@ -0,0 +1,4 @@
+/**
+ * Implementation of distributed topology store using p2p synchronization protocol.
+ */
+package org.onlab.onos.store.topology.impl;