releasing 1.6.7 with nested resource fix

CHANGELOG.rdoc

+1.6.7 (October 4, 2011)
+
+* fixing nested resource problem caused by namespace addition - issue #482
+
+
 1.6.6 (September 28, 2011)
 
 * correct "return cant jump across threads" error when using check_authorization (thanks codeprimate) - issues #463, #469

cancan.gemspec

 Gem::Specification.new do |s|
   s.name        = "cancan"
-  s.version     = "1.6.6"
+  s.version     = "1.6.7"
   s.author      = "Ryan Bates"
   s.email       = "ryan@railscasts.com"
   s.homepage    = "http://github.com/ryanb/cancan"