update redis-namespace dep to 1.2.0+

we need this so blpop strips off the namespace keys for when its
returned back to Resque.

Author: hone

resque.gemspec

@@ -21,7 +21,7 @@ Gem::Specification.new do |s|
   s.extra_rdoc_files  = [ "LICENSE", "README.markdown" ]
   s.rdoc_options      = ["--charset=UTF-8"]
 
-  s.add_dependency "redis-namespace", "~> 1.0"
+  s.add_dependency "redis-namespace", "~> 1.2"
   s.add_dependency "vegas",           "~> 0.1.2"
   s.add_dependency "sinatra",         ">= 0.9.2"
   s.add_dependency "multi_json",      "~> 1.0"