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PostGIS 1.3.1 Release

The 1.3.1 release of PostGIS is now available. This release introduces new functionality, as well as various performance enhancments.

Began migration of functions to the SQL-MM naming convension; using the spatial type (SP) prefix.
Created cached and indexd point-in-polygon short-circuits for the functions ST_Contains, ST_Intersects, ST_Within and ST_Disjoint.
Added inline index support for relational functions.
Extended curve geometry support to geometry accessor and some processing functions.
Added Hibernate Dialect