Upgrade to Rails 2.3.17
Upgrade to rack 1.1.6
Upgrade json_pure to 1.5.5
Fix failing test due to new HTML-escaping rules

A change in Rails causes single quotes to now be escaped by `h`.
Merge branch 'cve/1.2rc/rails-2.3.17' into 1.2rc

* cve/1.2rc/rails-2.3.17:
  Fix failing test due to new HTML-escaping rules
  Upgrade json_pure to 1.5.5
  Upgrade to rack 1.1.6
  Upgrade to Rails 2.3.17
Update VERSION for 1.2.22
Merge branch '1.2rc'

* 1.2rc:
  Update VERSION for 1.2.22
  Fix failing test due to new HTML-escaping rules
  Upgrade json_pure to 1.5.5
  Upgrade to rack 1.1.6
  Upgrade to Rails 2.3.17
(#19304) Upgrade to json_pure 1.7.7 for CVE-2013-0269

CVE-2013-0269 Denial of Service and Unsafe Object Creation Vulnerability in JSON

This is resolved for the dashboard by upgrading to json_pure 1.7.7 in our
vendored set of gems.  All our uses of the JSON API use the safe mechanisms
that this upgrade will ensure can't misbehave in fundamental ways.

Signed-off-by: Daniel Pittman <daniel@puppetlabs.com>
Merge pull request #177 from daniel-pittman/bug/master/19304-upgrade-json-pure-for-cve-2013-0269

(#19304) Upgrade to json_pure 1.7.7 for CVE-2013-0269