Please update document.parser.class.inc.php before modifying it

FYI to all committers -- I have reformatted the entire document.parser.class.inc.php file (as of revision 1411) to improve the readability of some of the logic, indent lines at the proper 4 spaces, and make sure all the line endings are in order. Please ensure that you update your branches with the latest version of this file from trunk before modifying this file any further. It probably needs some of the wrapped stuff reformatted still since I used an auto-formatter, but it is a step closer to being readable and in a standard format.