From the python 2 docs: POSIX users (Linux, BSD, etc.)
are strongly encouraged to install and use the much
more recent subprocess32 module instead of the version
included with python 2.7. It is a drop in replacement
with better behavior in many situations.
* added db migration for integration table, version 55
* added integrations views/templates/models
* added slack integration
* added h.url.current() support for pyramid only contexts
* added issues extractor for commit messages
* renamed repo-deleted/repo-created to repo-delete/repo-create
* removed marshmallow
* added serialization for events to static dicts of data
* added lazy_ugettext for translation of start time string
