Merge pull request #53 from mgeier/remove-dependencies

[mgeier]

Is flit really needed when installing with pip?

setuptools has already been imported further up in the file, so installing it now would be a bit late ...

I guess wheel is only needed when building bdist_wheel, but not for normal pip installing, right?

And I guess users will want Sphinx if they install this module, but I don't think it should be a formal dependency.

I'm not sure about the last point in the case where only a subset of Sphinx versions are supported, but this is not the case here anyway.

[choldgraf]

yep, this all makes sense to me, thanks for this! Flit is an old dependency :-)

thanks!