Add second argument to #respond_to? call to fix mounting in 2.0.0. Cl…

…oses #351

.gitignore

@@ -30,6 +30,7 @@ pkg
 .yardoc/*
 dist
 Gemfile.lock
+tmp
 
 ## Rubinius
 .rbx

lib/grape/api.rb

@@ -298,7 +298,7 @@ def http_digest(options = {}, &block)
       def mount(mounts)
         mounts = { mounts => '/' } unless mounts.respond_to?(:each_pair)
         mounts.each_pair do |app, path|
-          if app.respond_to?(:inherit_settings)
+          if app.respond_to?(:inherit_settings, true)
             app_settings = settings.clone
             mount_path = Rack::Mount::Utils.normalize_path([ settings[:mount_path], path ].compact.join("/"))
             app_settings.set :mount_path, mount_path

spec/grape/api_spec.rb

@@ -1535,6 +1535,7 @@ def self.call(object, env)
 
           mount app
         end
+
         get '/v1/cool/awesome'
         last_response.body.should == 'yo'
       end