Metacat

Add code to delete the previous permission when update.

Now, eml parser can support pulling out access control for document level and subtree level.

Add code to handle subtree.

Every call to write into xml_nodes will return current node id.

Add a varible to keep track node id and every call for write to xml_nodes will return a node id.

A new class to store info about sub tree.

Add code to handle additional access data and reference.

Add the code to handle text nodes were splitted to couples.

Add the code the handle text node was splitted

After finishing parsing a access rule and accessSection, assign them to a new object.