geometryCondition() now supports condition functions that take more than 2 parameters, eg ST_DWithin(geom1, geom2, dist)

See http://drupal.org/node/1529808

non-terminating error handling when postgis connection cannot be made. see http://drupal.org/node/1517054

ensure geom table is joined when specifying return_geometry, allowing for "raw" geometry query format

Making it possible to pass an array of ids instead of an entity for running an entity relationship query

Changes to how a geometry is passed in for a geometry filter, because it should not just be a string of wkt

Adding a hook for schemas, not invoked anywhere yet, moving stuff around for better organization of the code