Moved trivial from net to store.
Fixed some javadocs.
diff --git a/core/store/trivial/src/main/java/org/onlab/onos/store/trivial/impl/package-info.java b/core/store/trivial/src/main/java/org/onlab/onos/store/trivial/impl/package-info.java
new file mode 100644
index 0000000..f697a87
--- /dev/null
+++ b/core/store/trivial/src/main/java/org/onlab/onos/store/trivial/impl/package-info.java
@@ -0,0 +1,5 @@
+/**
+ * Implementations of in-memory stores suitable for unit testing and
+ * experimentation; not for production use.
+ */
+package org.onlab.onos.store.trivial.impl;