django 2.0 compat

[davidszotten]

django < 2.0 is fine inserting bytestrings into a textfield, but as of 2.0 there is a (py3) isinstance(str) -> str(value) which for b'foo' becomes "b'foo'"

[coveralls]

Coverage remained the same at 86.229% when pulling 8386098 on davidszotten:django2.0-compat into 9e49f34 on pinax:master.

[coveralls]

Coverage remained the same at 86.229% when pulling a20ed2d on davidszotten:django2.0-compat into 9e49f34 on pinax:master.

[coveralls]

Coverage remained the same at 86.229% when pulling ee6fc00 on davidszotten:django2.0-compat into 9e49f34 on pinax:master.

[davidszotten]

ping @spookylukey

[spookylukey]

Thanks!

[davidszotten]

thank you! any chance of a release? anything i can do to make that easier (e.g. do you like/dislike changes.txt + version bumps in the same pr)?

[spookylukey]

An entry in CHANGES.txt would help. Normally I follow RELEASE.rst but it looks like I forgot to add the new section.