Added django-sekizai support in contrib

[saulshanabrook]

Added support for django-sekizai, by supplying a postproccessor to be used that uses django-compressor. The code is taken directly from this gist. django_compressor + django-sekizai also has an issue on django-sekizai

[diox]

The travis build failed because of these pep8 failures, can you fix them please ?
compressor/contrib/sekizai.py:11:1: E302 expected 2 blank lines, found 1
compressor/contrib/sekizai.py:18:108: W292 no newline at end of file

Thanks !

[diox]

@saulshanabrook : one last thing, since it's not your code originally, I'd like to get confirmation from @timmyomahony that he is ok with this just to be on the safe side. I'll also ask on the issue over at django-sekizai.

[timmyomahony]

Yep. Fine with me.

[diox]

Excellent, thanks!

[aarcro]

sekizai.py is not in the 1.2 build distributed by pypi

[diox]

Yes, this was just merged 3 days ago, and the 1.2 release is now 3 months old. We'll make a new release eventually, but for the time being, if you really need this, use development version or copy over the file to your project/app.

[aarcro]

Thanks for the quick response. I'm just copying for now. I don't actually know how fast things move to pypi. And I found it in the 1.2 docs on read the docs, so I was confused when it wasn't there.