Fix WFE-797, store the workflow bundle in a folder.
Fixes WFE-798 - delete the t2flow if it is in the same RO that the
bundle goes to.
Working on WFE-769, need to write out the model in a separate thread.
Fixes WFE-769, make an annotation linking the wfbundle and the main
workflow.
[maven-release-plugin] prepare release wf-ro-0.7
[maven-release-plugin] prepare for next development iteration