Merge pull request #213 from vitaly/master

fix :prod_webserver handling when it was set in defaults file.
Add source signposts
Only require capybara-webkit in test environment for rails prelaunch
Merge pull request #215 from tmock12/capybara-webkit

Only require capybara-webkit in test environment for rails prelaunch
see CHANGELOG, bump version to 2.2.42
Merge pull request #214 from MarkDBlackwell/feature_add-source-signposts

Pull request adding source signposts to generated templates
see CHANGELOG, bump version to 2.2.43
minor typo
allow Rails 4.0 with warning
allow Rails 4.0 use and warn to check for GitHub issues
update .ruby-version file
typo
formatting message
see CHANGELOG, bump version to 2.3.0
add 'simple-test' example application to diagnose issue #220
update README
attempt to resolve issue #148 and #220
add 'apps4' recipe with 'learn-rails' example application
preliminary menus for Rails 4.0
add the Ruby version to the Gemfile