avatar style fixes #63
slight update to copy on splash page

Still needs Adv. Council avatars on bottom & final copy. Checking out this version.
Merge pull request #67 from datamade/signon_test

Showing read more link on question index. Added acceptance test for signature threshold on #index
Add prevention of matching person per keyup after partial email
Disambiguate form to fill out in spec

Temporary fix while work is done to translate answer form
mockup to real form.

#45
Increase poltergeist timeout to stop flickering