Remove is_fresh property for CFSNodes

Nobody needs to care whether the object was just created or not. I think
this may have been some debugging code that accidentally stuck around.

Signed-off-by: Andy Grover <agrover@redhat.com>
Fix grammar in _create_in_cfs_ine

exists -> exist

Signed-off-by: Andy Grover <agrover@redhat.com>
Fix typo that broke qla2xxx

closes #21.

Signed-off-by: Andy Grover <agrover@redhat.com>