Merge remote-tracking branch 'wso2dev_mediation_upstream/master'
fixed {https://wso2.org/jira/browse/ESBJAVA-2466}
Merge remote-tracking branch 'wso2dev_mediation_upstream/master'
Merge pull request #30 from dushansachinda/master

fixed {https://wso2.org/jira/browse/ESBJAVA-2466}
Added new improvement to drop a message after max retry