Force inserted bools to be ints, per Tim's suggestion on bug 15148.

Force inserted bools to be ints, per Tim's suggestion on bug 15148.
This should be fine for now as Postgres uses SMALLINTs for BOOLs, to
match MySQLs BOOL/TINYINT aliasing and subsequent MW coding assumptions.
It's possible this will cause bad effects if inserted values are called
in a boolean context when they are going into a non-SMALLINT column, but we can handle
those as they come up.