Include missing py files

Include missing *.py files generated by 'mvn package'.

Change-Id: I14be5d8d37b6fab2335d01af3c5dfd00c54ec757
Issue-ID: VNFSDK-98
Signed-off-by: Lianhao Lu <lianhao.lu@intel.com>
diff --git a/assembly.xml b/assembly.xml
index f6f5ab9..2c62ae3 100644
--- a/assembly.xml
+++ b/assembly.xml
@@ -26,12 +26,13 @@
             <includes>
                 <include>COPYRIGHT</include>
                 <include>LICENSE</include>
-	        <include>setup.py</include>
-	        <include>MANIFEST.in</include>
+                <include>MANIFEST.in</include>
                 <include>Makefile</include>
                 <include>cli/**</include>
                 <include>packager/**</include>
                 <include>requirements.txt</include>
+                <include>setup.py</include>
+                <include>validator/**</include>
             </includes>
             <excludes>
                 <exclude>**/*.pyc</exclude>