* Fixing issue #20. is_vulnerable_version? has a problem when the
  patchlevel is the same but there are only three different version
  numbers (x.y.z format).  The last change introduces this vuln. Thank you
  Florin for opening the issue.
* Added a check for CVE-2013-0162
* Added a check for CVE-2012-2139
* Added a check for CVE-2012-2671
* Added a check for CVE-2012-1098
Updated codesake-commons dependency in gemspec
Changed dawn name to Codesake::Dawn
Fixed some typos
Improved README