Add link to (_cc1/environment-variables.md) from both 12.04 and 14.04 & remove env vars from 12.04 about circleci-docs

[smart-alek]

Great suggestion, @brycefisher! I'll reopen and rename this one to incorporate that.

[brycefisher]

No worries at all! Thanks for looping me in.

[felicianotech]

Hi @brycefisher, thank you so much for pointing this out. I've looked at those pages several times recently and somehow didn't notice that. I'm leaning towards your first suggestion. That makes a lot of sense.

[brycefisher]

Awesome thanks!

[keybits]

This appears to be fixed: https://circleci.com/docs/1.0/environment/

@felicianotech can we close?

[smart-alek]

@keybits that link just goes to separate 12.04 and 14.04 pages. But I think this article is what @brycefisher was looking for. Let me know if that's not sufficient, and we'll re-open this!

[brycefisher]

@smart-alek yes! That article is definitely the content I was looking for. IMHO, it would make sense to remove the environment vars from the 12.04 page and add a link to https://circleci.com/docs/1.0/environment-variables/ from both image pages.

[smart-alek]

@brycefisher thanks for your help on this! We're closing out most of our 1.0 issues involving edits in favor of focusing on 2.0 docs. Just didn't want you to wonder what happened to this, though. :)