small styling changes

app/controllers/comments_controller.rb

@@ -65,11 +65,11 @@ class CommentsController < ApplicationController
     if user_signed_in?
       @post = current_user.find_visible_shareable_by_id(Post, params[:post_id])
     else
-      @post = Post.where(:id => params[:post_id], :public => true).includes(:author, :comments => :author).first
+      @post = Post.find_by_id_and_public(params[:post_id], true)
     end
 
     if @post
-      @comments = @post.comments.includes(:author => :profile).order('created_at ASC')
+      @comments = @post.comments.for_a_stream
       respond_with do |format|
         format.json  { render :json => @comments.as_api_response(:backbone), :status => 200 }
         format.mobile{render :layout => false}

app/models/comment.rb

@@ -38,6 +38,7 @@ class Comment < ActiveRecord::Base
 
 
   scope :including_author, includes(:author => :profile)
+  scope :for_a_stream, including_author.merge(order('created_at ASC'))
 
   before_save do
     self.text.strip! unless self.text.nil?

app/models/person.rb

@@ -212,7 +212,7 @@ class Person < ActiveRecord::Base
   end
 
   def public_key_hash
-    Base64.encode64 OpenSSL::Digest::SHA256.new(self.exported_key).to_s
+    Base64.encode64(OpenSSL::Digest::SHA256.new(self.exported_key).to_s)
   end
 
   def public_key