Update function for albumsInfo page

* Now takes the userid, so that you can view other pages.
* (Still in progress.)
Minor doc update.
Add jade for about.
Restore albumContents jade
Add a default jade page.
Add support for top-rated gallery to gallery.js
Improve formatting for about page.
Add #changeInfo style to accountsettings.
Update style in profile.
Update CSS for image page.
Experiments with account settings.  Not yet completed.
Add link to top-rated gallery on galleries page.
Update index to link to blank pages rather than non-pages.
Update header

* challenges and create link to blank pages
* Add logout link
Remove messaging from profile page.
Add links to users in sample comments
Merge changes to singleimage.jade
Add new pages to routes