Metacat

Add the util.xsl which will be reused by another xsl files.

handle search options:
-remember the checked options when form is 'reset'
-refresh the search results when options have changed (by checking/unchecking the boxes)

ui enhancements:
-Remove all button for the cart
-Add all button for the search results
-use buttons for the add/remove cart actions
-Remove all button for the search criteria
-Add button for the search criteria now clears the tree selection after it saves the selected concepts

search criteria:
-ensure search criteria ids are unique
-add click listener to Remove button only

add login/logout page and links - only logged in users can use the data cart

comment out the Refresh button for the Cart - now loading it when the page loads and after every edit

load the cart when the page first loads

apply accordian listeners to cart and search results separately

show the number of records in the cart on the tab label, ie:
Cart (3)

use post() method rather than load() when the div is not given - allows calling a metacat method without replacing any content on the page