adding dummy method signature InboundEndpoint
Merge pull request #110 from isururanawaka/inbound

adding dummy method signature getInterval and setInterval for  InboundEndpoint
Merge pull request #34 from wso2-dev/master

sucessfully commited the changes
Timestamp : Fri Aug 22 09:53:14 IST 2014
https://wso2.org/jenkins-pr-builder/job/wso2-synapse/352/