Version 2.1.0

Thanks to @pmouawad for the fixes and feedback.

* Added use of assertionArray
* getElapsedTime now returns a generic date for comparison in Jenkins AND the elapsed time according to today.
* Added "sentBytes" metric
* ResponseTime uses the getTime() method
* Added timeout to avoid hanging requests
* Corrected formatting of dates
* Added logging in case of failures

Author: anthonygauthier

pom.xml

@@ -3,7 +3,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>net.delirius</groupId>
 	<artifactId>jmeter.backendlistener.elasticsearch</artifactId>
-	<version>2.1.0-SNAPSHOT</version>
+	<version>2.1.0</version>
 	<packaging>jar</packaging>
 	<name>jmeter.backendlistener.elasticsearch</name>
 	<url>http://maven.apache.org</url>