update links from railsapps.github.com to railsapps.github.io
typo in README
change Twitter handle for social sharing example
Visitor requests invitation
Remove users sign up feature

Duplication of visitors request invitation feature
Users sign in
Admin sends invitation
Admin view progress
Merge pull request #38 from tmock12/fix_tests

Fix cucumber tests
build using rails_apps_composer 2.2.41
Add missing "I should see step"
Use webkit as javascript driver
Merge pull request #40 from tmock12/fix_tests

Use webkit
update README links
update README
new Gibbon API for MailChimp
merged upstream
reset gibbon gem to 0.4.6
reverted confing/environments/production.rb