heavy refactoring, replace Call and Cmd Classes with individual
Processes and general ProcessHandler
Uses Zend Server Capability for getting ZendServerSDK binary. Capability
has to be requirement for any Zend Server Task (Bamboo Job)
remove switch statement to make it compatible with Java 1.6
new atlassian version
validation of input values, refactoring of field names
set correct default values for task fields
heavy refactoring. 
Utilize DeploymentTask and DeploymentCheckTask for Bamboo Deployment
Context.
removed ZPK helper, use buildenv (different env for Build and Deploy)now
reorganized package structure
added userparam support for ZS deployments
Rollback check, added some status information on rollback itself and app
version after rollback
configuration option for automatic rollback after failed deployment
small fix, wrong comparison
Rollback as individual Task