moved out password reset tasks from celery, it doesn't make any sense to keep them there, additionally they are broken in when executing _(), and url() calls. This fixes issue #572
"""Various utilities to work with Python < 2.7.Those utilities may be deleted once ``vcs`` stops support for older Pythonversions."""importsysifsys.version_info>=(2,7):unittest=__import__('unittest')else:unittest=__import__('unittest2')