Update version 2.0.3-RC4

Author: LofhJann

pom.xml

@@ -2,7 +2,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>fi.hsl</groupId>
     <artifactId>transitdata-common</artifactId>
-    <version>2.0.3-RC2</version>
+    <version>2.0.3-RC4</version>
     <packaging>jar</packaging>
     <name>Common utilities for Transitdata projects</name>
     <properties>