Upgrade rest-client version

weixin_authorize.gemspec

@@ -18,7 +18,7 @@ Gem::Specification.new do |spec|
   spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
   spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
   spec.require_paths = ["lib"]
   spec.require_paths = ["lib"]
 
 
-  spec.add_dependency "rest-client", ">= 1.6.7"
+  spec.add_dependency "rest-client", ">= 1.9"
   spec.add_dependency "redis", ">= 3.1.0"
   spec.add_dependency "redis", ">= 3.1.0"
 
 
   spec.add_dependency "carrierwave", ">= 0.10.0"
   spec.add_dependency "carrierwave", ">= 0.10.0"