Installer updates followup

Graphics Libs: Sqlite updated to 3.3.6. ImageMagick updated to 6.2.8-0. GIS Libs: GEOS updated to 2.2.2. NetCDF now dynamic. Postgres: Postgres updated to 8.1.4. PlPerl now universal. MapServer: removed troublesome Oracle support, which fixes non-working Python MapScript.

In all packages I’ve cleaned up some build issues that should help developers. They’ve also been rebuilt from scratch with a single-build process (except Postgres), instead of separate builds merged together. This shouldn’t affect their usability, but most libraries and programs did grow about 1% in size.