fix disappearing subject. removed set subject "" and checked forsubject existence before setting the form element value. This only affectsreplies.http://openacs.org/sdm/one-baf.tcl?baf_id=1848
Splitting up the message keys into package_key and message_key in the datamodel, adding a message key table, changing format of catalog files to be xml based, cleaning up tcl API and its documentation, adding acs-automated-testing tests that test some catalog and message TCL procs