Added a check for CVE-2014-1233
Added a check for CVE-2014-1234
Added a check for CVE-2013-4413
* Added a check for CVE-2013-4489
* Added a not_affected attribute to dependency check to flag as not vulnerable
  previous versions

Gem version comparison **must be** refactored... the way it is
implemented is far from being elegant, readable and easy to maintain.
* Added a check for CVE-2013-5671
* Added a check for CVE-2013-4593
* Added a check for CVE-2013-0262
* Added a check for CVE-2013-0184
* Added a check for CVE-2013-0183
* Added a check for CVE-2012-6109
* Added a check for CVE-2011-5036
* Added a check for CVE-2013-2516
* Added a check for CVE-2013-2513
* Added a check for CVE-2013-2512
* Added a check for CVE-2013-1607
cremefraiche gem author yanked all previous gem version. Only the
0.6.5.2 released the 29 Jan 2014 is available on rubygems.org.

So we can safetly remove previous version check.
Added @rubysec website link
First "safe redirect and forward" check implementation... regex must be
checked again
Now CheckForSafeRedirectAndForward should be fixed
I moved some more big changes in version 1.2