Add Hashie as dependency

Author: nickpellant

faces.gemspec

@@ -18,6 +18,7 @@ Gem::Specification.new do |spec|
   spec.require_paths = ["lib"]
 
   spec.add_dependency 'rack'
+  spec.add_dependency 'hashie', ['>= 1.2', '< 3']
   spec.add_development_dependency 'bundler', '~> 1.3'
   spec.add_development_dependency 'rake'
 end