address some warnings

Author: adamkittelson

Gemfile

@@ -1,6 +1,7 @@
-source :rubygems
+source 'https://rubygems.org'
 
 gem "multi_json"
+gem "rake"
 
 group :test do
   gem "shoulda"
@@ -12,5 +13,6 @@ group :development do
   gem "jruby-openssl", :platforms => :jruby
   gem "ruby-debug",    :platforms => :mri_18
   gem "ruby-debug19",  :platforms => :mri_19
-  gem "typhoeus",      :platforms => [:mri_18, :mri_19]
+  gem "byebug",        :platforms => :mri_20
+  gem "typhoeus",      :platforms => [:mri_18, :mri_19, :mri_20]
 end