Set automatic attribute "languages"

- Some cookbooks, notably opscode's passenger_apache2, expect the "languages" mash to exist. These cookbooks cause
  other cookbooks to fail during chefspec tests since the languages mash is referenced in attributes.

lib/chefspec/chef_runner.rb

@@ -143,7 +143,7 @@ def to_s
     # @param [Ohai::System] ohai The ohai instance to set fake attributes on
     def fake_ohai(ohai)
       {:os => 'chefspec', :os_version => ChefSpec::VERSION, :fqdn => 'chefspec.local', :domain => 'local',
-       :ipaddress => '127.0.0.1', :hostname => 'chefspec',
+       :ipaddress => '127.0.0.1', :hostname => 'chefspec', :languages => Mash.new({"ruby" => "/usr/somewhere"}),
        :kernel => Mash.new({:machine => 'i386'})}.each_pair do |attribute,value|
         ohai[attribute] = value
       end

spec/chefspec/chef_runner_spec.rb

@@ -46,6 +46,7 @@ module ChefSpec
       context "default ohai attributes" do
         let(:node){ChefSpec::ChefRunner.new.node}
         specify{node.os.should == 'chefspec'}
+        specify{node.languages['ruby'].should == "/usr/somewhere"}
         specify{node.os_version.should == ChefSpec::VERSION}
         specify{node.fqdn.should == 'chefspec.local'}
         specify{node.domain.should == 'local'}
@@ -140,4 +141,4 @@ module ChefSpec
       end
     end
   end
-end
+end