Merge branch 'release/0.4.2' into develop
Minor correct for FAQ now that django-debug-toolbar has been updated.
WOW, that was some Denglish right there.
Switched to Travis.
Fixed typo.
Minor flake8 fixes.
Disabled nonfunctioning test.
Use the django-discover-runner app instead of nose.
Show coverage report, too.
Tried fixing the callback tests.
Fixed callback test.
Removed unneeded import.
Removed 1.2.X tests.
Moved test running to new Makefile.
Fixed the patch of the test settings in docs config.
Only append the parent host if really needed. Fixes non-subdomain URL reversing.
Fixed #6.
Extended list of flake errors to ignore.
Fixed example.
Added HOST_SCHEME setting.