thanks for your work!
I have updated to 1.1.7. The notification plugin is now working with http.
But now is https not working. It is possible to clone a repository but not pushing to it.
Where is my fault?
I think the problem is the pre/post receive hook from mercurial back to scm-manager. It looks like that your python does not like your certificate. How did you generate the certificate? Is the python 2.7 64 Bit the only python installation on your system? Or could you test another python?