Fix data_types incompatibility with Django 1.8+, issue #128.

[chris-nlnz]

Django 1.8 changed to assume the data_types attribute is on the DatabaseWrapper class, rather than the DatabaseCreation class, causing issues when saving objects (see issue #128 for more details).

I've added data_types to the DatabaseWrapper as well so as to be compatible with Django 1.8+ as well as retain compatibility with older versions.

[RossRogers]

Hi Chris,

Thanks for the contribution. Apologies for the lack of response on your issue. We're all crazy busy right now, unfortunately.

The django-pyodbc project does not want to drop support for Django 1.4-1.7 at this time. I don't have Microsoft SQL Server on my home machine, so I can't test it, but it seems like your edits are not backwards compatible with versions less than 1.7. Have you tried running your version against django 1.7? e.g. pip install django==1.7.11 and try to invoke your code.

[chris-nlnz]

Hi Ross,

No worries, I understand you're busy, wasn't expecting such a quick response even!

I haven't removed the data_types from the DatabaseCreation class so now it's present in both classes, which I think should mean ensures compatibility with older Django versions as well.

I've tried it against 1.7.11 and 1.6.11 and it works fine (I was having some issues running the test suites so I've only done a few basic tests, e.g. some regular Django queries and a .save() that previously failed before this fix).

Thanks for the feedback

[RossRogers]

Yeah, the test suites are a little rusty too. W.I.P...

I can't see how your edits could cause a conflict, so I'll merge it in.

[chris-nlnz]

Great, thanks!

[RossRogers]

I'll do a proper release in my morning tomorrow and bump the version to 1.0.1 .

[RossRogers]

Released as version 1.0.1