compat-test: merge with stable
* Blackbox format seems to have change when displaying config CLI options.
* As obsfate template is now only compatible with hg 4.2+, remove all references
to it in test files.
# name space package to host third party extensionsfrom__future__importabsolute_importimportpkgutil__path__=pkgutil.extend_path(__path__,__name__)