Just talked to Martin Davis, and a recent email to the JTS list both
confirm our JTS question from Monday's IRC...
So we *do* have a firm commitment to JTS 1.6 & CoordinateSequence
mutability. He also asked if we could paying attention to rectangle and
point predicate improvements as the changeover to JTS 1.6 occurs.
So the JTS 1.6 SNAPSHOT will start to reflect a more recent version from
CVS as Jesse moves through optimizing LiteRenderer2 on trunk. When JTS
1.6 is released trunk will switch over to that.