Generate source distribution

Change-Id: I26063f97128596129f2d94552d331a81bf211315
diff --git a/pom.xml b/pom.xml
index a243d65..ffc088e 100644
--- a/pom.xml
+++ b/pom.xml
@@ -102,6 +102,7 @@
                 <configuration>
                     <appendAssemblyId>true</appendAssemblyId>
                     <descriptors>
+                        <descriptor>src/assembly/src-distribution.xml</descriptor>
                         <descriptor>src/assembly/jar-distribution.xml</descriptor>
                         <descriptor>src/assembly/bin-distribution.xml</descriptor>
                     </descriptors>