Fixing onos-maven-plugin App Mojo

Dots in artifactId should not be replaced with slashes.

Change-Id: I7d1b2608702255a36bfffeb0ca7c2acb9f5bc076
diff --git a/tools/package/maven-plugin/src/main/java/org/onosproject/maven/OnosAppMojo.java b/tools/package/maven-plugin/src/main/java/org/onosproject/maven/OnosAppMojo.java
index f760ce0..fe47927 100644
--- a/tools/package/maven-plugin/src/main/java/org/onosproject/maven/OnosAppMojo.java
+++ b/tools/package/maven-plugin/src/main/java/org/onosproject/maven/OnosAppMojo.java
@@ -368,7 +368,7 @@
 
     // Generates artifact directory name from the specified elements.
     private String artifactDir(String gid, String aid, String version) {
-        return gid.replace('.', '/') + "/" + aid.replace('.', '/') + "/" + version;
+        return gid.replace('.', '/') + "/" + aid + "/" + version;
     }
 
     // Generates artifact file name from the specified fields.