Revert "[maven-release-plugin] prepare release jsonassert-1.5.0"

This reverts commit f75cf9b.

Author: Carter Page

pom.xml

@@ -10,7 +10,7 @@
 
     <groupId>org.skyscreamer</groupId>
     <artifactId>jsonassert</artifactId>
-    <version>1.5.1-SNAPSHOT</version>
+    <version>1.4.1-SNAPSHOT</version>
     <packaging>jar</packaging>
 
     <name>JSONassert</name>