Fixed bug with giving orders
Better bugfix for giving orders

This bug fix creates a few more Thing properties and methods, notably
verifyActor(), which can be used to score potential targets of
a command like Bob, do something, rather than just skipping the
scoring.
Add object announcements to check and verify
Removed Economical Option for storing object table

Previous versions allowed a storeWholeObject table flag on gameMain,
which in theory allowed a more 'economical' way of storing references
to objects for conversation tags than storing the information for
every object in the game, but in practice the saving this gave
was neglible, and the 'economical' option was kludgy and unreliable
so it seemed best to remove it.
Tidy up removal of economical option
Documentation update for recent changes