Update version strings for archetypes

Also, hooking learning-switch app into the Maven build

Change-Id: Ie4379bd170a066d8b7479d0db0c1ae24b80d766a
diff --git a/tools/package/archetypes/rest/pom.xml b/tools/package/archetypes/rest/pom.xml
index 8c29589..63751be 100644
--- a/tools/package/archetypes/rest/pom.xml
+++ b/tools/package/archetypes/rest/pom.xml
@@ -20,7 +20,7 @@
   <parent>
     <groupId>org.onosproject</groupId>
     <artifactId>onos-archetypes</artifactId>
-    <version>1.7.0-SNAPSHOT</version>
+    <version>1.8.0-SNAPSHOT</version>
   </parent>
 
   <artifactId>onos-rest-archetype</artifactId>