OPT improved logging
FIX forgot to add models.py changes
FIX pep8
Merge pull request #83 from spilgames/logging

OPT improved logging
prepare 3.5.1
prepare 3.5.1
FIX improved log messages
NEW added log entries for notifications
Merge pull request #84 from spilgames/log_improvements

FIX improved log messages
prepare 3.5.2
Hardcode django-grappelli to version 2.4.8

Prevents TemplateSyntaxError in /admin/. See issue #85.
Merge pull request #86 from dbarlett/master

Hardcode django-grappelli to version 2.4.8
replace email address