don't include excluded properties

[fuhrysteve]

Hi @kvesteri! I think this should fix #152 - it seems to for me. Wondering if you could take a look?

[fuhrysteve]

In a nutshell, this makes items in __versioned__['exclude'] honor many to many relationships, and not just columns.

[kvesteri]

Thanks for the PR. Before merging this needs tests

[fpruitt]

@kvesteri @fuhrysteve I can confirm that this fixes #152 (an issue I spent several hours debugging today).. I'll look into providing a test to get this ready to merge later on tonight.

[fuhrysteve]

@fpruitt that would be awesome! Sorry I haven't circled back to write tests myself

[fuhrysteve]

@kvesteri added some tests!

[fpruitt]

Until this is merged, my company is installing from this commit (in case there is a delay getting this merged)

fpruitt@4d850b6

[fuhrysteve]

Removed the commit where I tried (and failed) to fix some weirdness with the build failing due to a problem w/ mysql on travisci - it appears to be fixed upstream now.

Additionally, I added python 3.6 (and removed 3.3) from the build and setup.py

@kvesteri - let me know if there's anything else I can do to polish this up - Thanks!

[vincentwhales]

Please merge this, thank you.

[kvesteri]

Thanks for the PR! 🚋