Geometric types added:
 - Points
 - Line Segments
 - Boxes
 - Paths
 - Polygons
 - Circles
PrimitiveType for geometric types added.
Merge branch 'develop' of https://github.com/croudet/pgjdbc-ng into develop

Conflicts:
	src/main/java/com/impossibl/postgres/jdbc/SQLText.java
	src/main/java/com/impossibl/postgres/utils/GeometryParsers.java