Add OS X 10.11 support

[rimusz]

[sgoings]

What's not working for you, @rimusz?

[rimusz]

Lots of this messages of this release OS X version is not supported, also lots of install permission error messages.
And docker-machine did not work there too

[mboersma]

docker-machine does work in general on OS X 10.11 El Capitan, at least I'm using it successfully. :-)

Could you post some logs with the rigger command you ran and the specific errors it produced? Then we can pin them down and fix them.

[bacongobbler]

can confirm that rigger, boot2docker etc. works on El Capitan 👍

[rimusz]

I will try to replicate problems tomorrow again

[rimusz]

this is mostly brew problem, it's permissions needs to be sorted out before running rigger

[rimusz]

and this Warning: You are using OS X 10.11.
We do not provide support for this pre-release version.
should be removed

[sgoings]

That's probably brew since that's nowhere in the rigger codebase.

[rimusz]

ah that brew again

[rimusz]

I think we can close this one when #42 is done