image.py: fix old-style(?) relative import statement

[tkluck]

This fixes #365. I can't actually find when this syntax became illegal, but this replacement works both in Python 2.7 and 3.6 whereas the original doesn't.

As I wrote in #365, this patch unbreaks installs under versions of pip that have a hard dependency on the py->pyc step succeeding.

[coveralls]

Coverage decreased (-1.07%) to 81.198% when pulling 23a29b4 on tkluck:master into 1650815 on tomerfiliba:master.

[henryiii]

Just to make sure that this doesn't break again, I'll add an import for image to the tests.

[coveralls]

Coverage decreased (-0.6%) to 81.684% when pulling 5f2fee3 on tkluck:master into 1650815 on tomerfiliba:master.

[coveralls]

Coverage decreased (-0.6%) to 81.684% when pulling 5f2fee3 on tkluck:master into 1650815 on tomerfiliba:master.

[coveralls]

Coverage decreased (-0.6%) to 81.684% when pulling 5f2fee3 on tkluck:master into 1650815 on tomerfiliba:master.

[henryiii]

Thanks!

[tkluck]

Thanks @henryiii ! Can I request a (point) release for this one? It's blocking my install in production.

[henryiii]

Sure. I’m traveling for Christmas so might not be immediate. I’d like to fix the slow load/added requirement from the translation addition too. ~1 week?

[tkluck]

That would be marvellous. Thanks! Let me know if I can help.

[henryiii]

Done, github and pypi are one 1.6.5, and conda-forge should follow soon.