Code review for DirectoryParser

Hi Prashant,

I did a little code review for the DirectoryParser. If you have questions let me know.

Sylvain
OK. I have intended the package to be PHP 5.3.3+
So, I shall use exception handling (try/catch block).
If you might notice, I have not used any logging here yet.
I wish to first finish the basic stuff to make it working for SAP. Later, I shall add improvements as suggested.