fixing STRATOS-466
Merge branch 'master' of https://git-wip-us.apache.org/repos/asf/incubator-stratos
adding throwable exception mapper. Now we return json error objects in all cases.
excluding few jars with license issues
adding schema files to stratos mock app and doing full round of testing
Merge branch 'master' of https://git-wip-us.apache.org/repos/asf/incubator-stratos
packaging HA Proxy extension's LICENSE and NOTICE files
correcting license issues
Changed load balancer endpoint timeout to 60 sec

Signed-off-by: Imesh Gunaratne <imesh@apache.org>
Fixed messaging model session timeout handling, subscriber re-connection and publisher retry logic

Signed-off-by: Imesh Gunaratne <imesh@apache.org>
Removed topic publisher retry from health checker ping event

Signed-off-by: Imesh Gunaratne <imesh@apache.org>
excluding dhtmlHistory.js file from license verification

Signed-off-by: Imesh Gunaratne <imesh@apache.org>
Merge branch 'master' of http://github.com/apache/incubator-stratos