database selection working, at last
fixed selection of newly created object. i.e when we add a new thing,
the relevant selec list gets set to that, and a cascading refresh is
called.
also fixed instance creation bug on description name
implemented semaphore on getTableData to fix asynchronous bug
localised the dtd's and globalised the sax handles in a vain attempt to
speed the startup
multi display field support
fixed create database cookie setting bug
fixed select order bug (primarily for stop_times)
fixed import/export of yyyyMMdd on calendar dates