Merge branch 'master' of https://github.com/warmerdam/geotools
Merge remote branch 'upstream/master'
Ensure that the TableWriter flushes out the current cell on a
toString() call (GEOT-4260).  Also add a very minimal TableWriterTest.
Avoid reentrancy problem where previousTriangle value changes while containsOrIsVertex() call is taking place resulting in returning the wrong triangle.
Merge pull request #188 from warmerdam/master

TableWriter flushing fix (GEOT-4260)