use multi_json instead of a json parser directly

lib/packagecloud/client.rb

-require 'json/pure' unless JSON::Ext
+require 'multi_json'
 require 'mime'
 require 'excon'
 require 'packagecloud/result'
@@ -254,7 +254,7 @@ module Packagecloud
       # returns the parsed body of a successful result
       def parsed_json_result(response)
-        prepare_result(response) { |result| result.response = JSON.parse(response.data[:body]) }
+        prepare_result(response) { |result| result.response = MultiJson.load(response.data[:body]) }
       end
       def prepare_result(response)

lib/packagecloud/version.rb

 module Packagecloud
   MAJOR_VERSION = "0"
   MINOR_VERSION = "2"
-  PATCH_VERSION = "22"
+  PATCH_VERSION = "23"
   VERSION = [MAJOR_VERSION, MINOR_VERSION, PATCH_VERSION].join(".")
 end

packagecloud-ruby.gemspec

@@ -18,6 +18,7 @@ Gem::Specification.new do |gem|
   gem.require_paths = ['lib']
   gem.add_runtime_dependency 'excon', '~> 0.40'
+  gem.add_runtime_dependency 'multi_json', '~> 1.0'
   gem.add_runtime_dependency 'json_pure', '~> 1'
   gem.add_runtime_dependency 'mime', '~> 0.4'