Issue #11 - This has now been resolved. I was able to figure out why I
was not able to use the whenChanged attribute to filter out users who
were changed in the last 'x' number of days. I had to convert the date
value to a Generalized String as this is how dates are stored in active
directory. Once I made this change, I was able to get the results I
wanted (though I am getting system generated accounts and this I don't
like so I'll have to fix this next ... I am thinking of just updating
the context so that it looks at specified OU's only as opposed to search
from the root of the domain). The other changes you see here deal with
some troubleshooting I was doing (i.e. I wanted to make sure I was
getting the value of the property 'whenChanged', etc.).