edit user profile
add (a bit of) authorization
use capybara-screenshot
a few more tests
repent - don't use poltergeist again
it works fine - but displays error: Rack::Test capybara driver has no ability to output screen shots. Skipping.
use capybara-webkit
Revert "use capybara-webkit"

This reverts commit 524c5bd0a9ac0f5b55c0526e54a0b8613820c05a.