Remove version restriction on Bundler 1.x

Author: kylefleming

cocoapods-binary.gemspec

@@ -22,6 +22,6 @@ Gem::Specification.new do |spec|
   spec.add_dependency "fourflusher", "~> 2.0"
   spec.add_dependency "xcpretty", "~> 0.3.0"
 
-  spec.add_development_dependency 'bundler', '~> 1.3'
+  spec.add_development_dependency 'bundler', '> 1.3'
   spec.add_development_dependency 'rake'
 end