* NexusIQ every build related to Corda X.Y (GA, RC, HC, patch or
snapshot) uses the same NexusIQ application
* NexusIQ application application has to exist before a build starts
* Fixed repository name for publishing, use OS instead of Ent one
* Use a virtual repo (corda-remotes) containing all Corda repositories with dependencies
* activated when CORDA_USE_CACHE environment variable is set
* Update Jenkins configuration to use new functionality
* it does *not* affect local builds as long as environment variable is not set!
