some simple catalog inspection classes
consolidate __str__ and __repr__
don't kill after interactive session
add convenience entry function
remove debugging stuff
retrieve a nested catalog for a given path
rename to cvmfs
make download/open code reusable
add OpenCatalog convenience method
use cvmfs.py for openCatalog.py
use cvmfs.py for openNestedCatalog.py
use cvmfs.py for openRootCatalog.py
add a script that allows for recursive catalog walking
generalize the running of sql commands
FIX: UTF-8 encoding problem
use cvmfs.py for walkCatalogs.py
minor refactoring (remove _GetCursor)
add documentation
FIX: typo
replace manifest() accessor by direct field access for consistency