deploymentPolicy added to cluster removed event and adding new properties volume.required and volume.size.gb
fixing https://issues.apache.org/jira/browse/STRATOS-421
adding external volume configuring support for IaaSes
refactoring attachVolume operation
adding two more volume support related properties
volume support related changes to CC and some improvements
adding instanceId to MemberContext
adding a new test case to CC to test MemberContext
removing deprecated method
conflict resolution
resolve wsdl conflict
removing deprecated deployers
correctly setting ComputeService and Template