Bump Rails version to 3.2.18 for security fixes.

For CVE-2014-0130
Merge pull request #691 from dylanahsmith/rails-security-fix

Bump Rails version to 3.2.18 for security fixes.
Remove debugger and ruby-debug from Gemfile

Those gems are specific to ruby version, and only used when debugging the app, so they dont need to be installed everytime
add the request-url to the demo
add a to_curl to notice and show on summary
Merge pull request #697 from phoet/add_to_curl_to_summary

Add to curl to summary
Return N/A on to_curl if no url given
Merge remote-tracking branch 'errbit/master' into release_candidate

Conflicts:
	Gemfile
	Gemfile.lock