#1 load() filter

[Gianluca Iannaccone]

load() callback should allow to filter records in the
module database. The filter will have to be passed as a
string in the callback given that CoMo doesn't know the
database schema. This gives maximum flexibility too in
implementing complex filters in the modules.

An application of this is related to querying remote
CoMo systems or using alternative storage
mechanisms (e.g., Diamond).