crawler.py is almost entirely from DataCat and will not work without having
some DataCat modules installed. (Step (b) was used)

Installing DataCat client library:
You can install the client by first checking out the folder in subversion 
to a location of your choise, then cd’ing into the directory and installing:

    svn co svn://svn.slac.stanford.edu/srs/org-srs-datacat/trunk/client/python
    cd python
    python setup.py install






