Upgrade to Java Client 5.1.2

Fixes #69

Author: acogoluegnes

pom.xml

@@ -54,7 +54,7 @@
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
 
-    <rabbitmq.version>5.0.0</rabbitmq.version>
+    <rabbitmq.version>5.1.2</rabbitmq.version>
     <commons-cli.version>1.1</commons-cli.version>
     <metrics.version>3.2.5</metrics.version>
     <logback.version>1.2.3</logback.version>