Allow conda channels to be added from conda-channels.txt

[paul-english]

No description provided.

[kennethreitz]

I like this interface! I haven't had time to play with Conda channels yet. Is there anything I need to know?

[paul-english]

I'm not sure on what might need to be known about this.

I had a dependency that was published on a custom channel, and this option seemed like a good solution to be able to install that. That's the extent of my knowledge with conda.

[bearnshaw]

@kennethreitz any reason this hasn't been merged? This would be really useful for, say, adding the conda-forge channel.

Good to run into you here @log0ymxm !

[coutcout]

Hi @kennethreitz
This would be really usefull. Could you merge it ?
Thank you !

[Atlas7]

I just bumped into an issue pushing a conda app to heroku realising it could be a channel issue. I have a strong feeling this thread is related! :)