Day 2: users, create and modify story

   .meteor/packages
   packages/.gitignore
   smart.json
   smart.lock
        - new packages added

   client/helpers/config.js
        - configuration for user authentication system

   client/templates/header.html
        - added user menu and login items

   client/templates/layout.html
   client/templates/stories/story_item.html
        - minor changes

   client/templates/stories/paragraph_create.html
   client/templates/stories/paragraph_create.js
   client/templates/stories/story_create.html
   client/templates/stories/story_create.js
        - new forms for creating and modifying a story
        - helpers and event handlers for hiding the forms
        - event handler for catching for submission and calling
          the server-side methods (where the real work is done)

   client/templates/stories/story_list.html
   client/templates/stories/story_list.js
   client/templates/stories/story_page.html
   client/templates/stories/story_page.js
        - added conditional logic, helpers and event handlers for
          hiding and showing the action buttons based on state
          and user being logged in (or out)

   lib/router.js
        - added sorting for story collection

   server/publications.js
        - new server-side methods for creating and adding to a story