JBIDE-13209 - Adding ESB 4.12 and loosening constraints for tooling (4.0.x branch) and updating versions
Merge pull request #11 from bfitzpat/JBIDE-13209_4.0.x

JBIDE-13209 - Adding ESB 4.12 and loosening constraints for tooling
JBIDE-13381 ESB Editor removes "http-client-property" property

Added content of property endpointURL to model.