Revert "Bump version"

This reverts commit 0227d92.

Author: RedstoneFuture

pom.xml

@@ -6,7 +6,7 @@
 
     <groupId>de.redstoneworld.redutilities</groupId>
     <artifactId>redutilities</artifactId>
-    <version>0.0.21-Snapshot</version>
+    <version>0.0.20-Snapshot</version>
 
     <properties>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>