Metacat

Add code to update tripes in data set file.

Using ! rather than white space to seperate access rules.

Using ! rather than white space to seperate access rule.

Revise some code.

Add a class to handle clean up access table.

Add a class to get access rules from xml_access table directly.

Add a new file to handle get access rules from a xml access document.

Change the describtion for data file path.

Remove the file which we didn't use.

In target "getdtd", filtering was set to be "No" when copy style sheet from build directory to lib directory. Filtering will be done when copy these files from lib directory to install directory in "install". The reason why we do this is because it will cause problem when we release metacat. When we release metacat, dtd files and style sheet file are included, so some stycle sheet's token was replaced by distributor's setting, which is different to user. Now token will be replaced in "installation", token will be replaced by user's setting.