* Replace while(true) with canonical for(;;)
* Warnings clean-up
* Untabify

git-svn-id: http://svn.osgeo.org/geos/trunk@3930 5242fede-7e19-0410-aef8-94bd7d2200fb
Untabify

git-svn-id: http://svn.osgeo.org/geos/trunk@3931 5242fede-7e19-0410-aef8-94bd7d2200fb
Declare QuadEdge and QuadEdgeSubdivision constructors as virtual to correct deleting object of polymorphic type.

git-svn-id: http://svn.osgeo.org/geos/trunk@3932 5242fede-7e19-0410-aef8-94bd7d2200fb