fix invitations#new, and a post spec which was mongo specific

app/controllers/invitations_controller.rb

@@ -7,8 +7,8 @@ class InvitationsController < Devise::InvitationsController
   before_filter :check_token, :only => [:edit]
 
   def new
-    sent_invitations = current_user.invitations_from_me
-    @emails_delivered = sent_invitations.map!{ |i| i.to.email }
+    sent_invitations = current_user.invitations_from_me.includes(:recipient)
+    @emails_delivered = sent_invitations.map!{ |i| i.recipient.email }
   end
 
   def create

app/views/invitations/new.html.haml

@@ -45,4 +45,3 @@
           = t('.already_invited')
         - for email in @emails_delivered
           = email
-

spec/models/post_spec.rb

@@ -25,7 +25,7 @@ describe Post do
       post = @user.post :status_message, :message => "hello", :to => @aspect.id
       xml = post.to_diaspora_xml
 
-      xml.include?(@user.person.id.to_s).should be false
+      xml.include?("person_id").should be false
       xml.include?(@user.person.diaspora_handle).should be true
     end
   end