modified the createGrid method to work with the new version of the grid control
made corrections that make the extraControls to have an extra td in the table. Also added the css classes to make the grid look like the grids in twitter bootstrap
made users.html refer to the new grid control. Also set up the variables for the loading the grid on users.html page
modified the plugin so that a delay before reload can be provided, otherwise the defaullt will be used
modified lib/user.php so that it returns the firstname and othernames of the users
fixing some bugs in the plugin