prepare release 0.0.4

Author: tonivdv

pom.xml

@@ -4,7 +4,7 @@
 
     <groupId>eu.adlogix.com.google.api.ads.dfp</groupId>
     <artifactId>googleads-dfp-utils</artifactId>
-    <version>0.0.4-SNAPSHOT</version>
+    <version>0.0.4</version>
     <packaging>jar</packaging>
 
     <name>Google Ads DFP Utilities</name>