Added a profile for users.
Renamed myprofile.html to user.php. Created users_helper.php with fetch_user_by_id function stub.
Added joke users. Changed include links to include once at the top of user.php.
Implemented fetch_user_by_id and pluralize functions. Changed param to id instead of user_id.
Created helper functions for products.
Extracted listing of products to a partial which uses a  variable. Used when displaying products in products.php and user.php
Finished up user page. Created image_tag_for_user helper function.
Added a missing closing brace in users_helper.
Merge pull request #16 from kaspth/user-profile

Add a profile page for users.