Upgrade actionpack version

Author: nguyenntph

jquery-fileupload-rails.gemspec

@@ -11,15 +11,13 @@ Gem::Specification.new do |s|
   s.summary     = %q{jQuery File Upload for Rails 3.1+ Asset Pipeline}
   s.description = %q{jQuery File Upload by Sebastian Tschan integrated for Rails 3.1+ Asset Pipeline}
 
-  s.rubyforge_project = "jquery-fileupload-rails"
-
-  s.files = Dir["lib/**/*"] + Dir["app/**/*"] + ["Rakefile", "README.md"] 
+  s.files = Dir["lib/**/*"] + Dir["app/**/*"] + ["Rakefile", "README.md"]
   s.test_files    = `git ls-files -- {test,spec,features}/*`.split("\n")
   s.executables   = `git ls-files -- bin/*`.split("\n").map{ |f| File.basename(f) }
   s.require_paths = ["lib"]
 
   s.add_dependency             'railties',   '>= 6.0.4'
-  s.add_dependency             'actionpack', '~> 6.0.4'
+  s.add_dependency             'actionpack', '>= 6.0.4.2'
   s.add_development_dependency 'rails', '>= 6.0'
   s.add_dependency             'sassc'
 end