Color-code headings of badge popovers.

Makes it more clear that we're mapping color to audience. Added for both
webapp and embed widget.

Fixes #81.
Merge branch 'master' of github.com:total-impact/total-impact-webapp
Updates link to blog posts from tumblr; changes assets env var to PACK_ASSETS.

Also removes any minimizing; It's useful to be able to pack all the js together on
production without having to worry about minimizers breaking. We've had minimizing
disabled for a long time, anyway.

This might solve apparent race condition w variable loading ("ReferenceError:
Can't find variable: analytics"), but I doubt it give that scripts should be loading
serially already.

Fixes #81.