Update to rails 3.2.16 for security patches:
actionpack is affected by the following security advisory:
  2013-12-03 - Incomplete fix to CVE-2013-0155 (Unsafe Query Generation Risk)
  2013-12-03 - Reflective XSS Vulnerability
rails is affected by the following security advisory:
  2013-12-03 - Denial of Service Vulnerability in Action View
Update ruby versions
Fix test_clean_checkout_should_perform_git_clean not reflecting changes (and added comment to explain why those arguments where chosen)
Update travis to check only 1.8.7 and 1.9.3
Another attempt to workaround 1.9.3-p484 ruby / debugger gem versions issue
Update rake version to try and work around 1.9.3 rake version issue
Merge branch 'fix_git_clean_test' into rails_3_2_16

Conflicts:
	.travis.yml
	Gemfile.lock
Merge branch 'upstream' into rails_3_2_16
Merge branch 'upstream' into fix_git_clean_test
Merge pull request #130 from ianheggie/fix_git_clean_test

Fix test_clean_checkout_should_perform_git_clean not reflecting changes ...
Merge pull request #131 from ianheggie/rails_3_2_16

Upgrade to Rails 3.2.16
Merge remote-tracking branch 'upstream/master' into rails-3.2

* upstream/master:
  Update rake version to try and work around 1.9.3 rake version issue
  Another attempt to workaround 1.9.3-p484 ruby / debugger gem versions issue
  Update travis to check only 1.8.7 and 1.9.3
  Fix test_clean_checkout_should_perform_git_clean not reflecting changes (and added comment to explain why those arguments where chosen)
  Update ruby versions
  Update to rails 3.2.16 for security patches: actionpack is affected by the following security advisory:   2013-12-03 - Incomplete fix to CVE-2013-0155 (Unsafe Query Generation Risk)   2013-12-03 - Reflective XSS Vulnerability rails is affected by the following security advisory:   2013-12-03 - Denial of Service Vulnerability in Action View