[DOCS] maintenance diff

Hello, Updated to have stronger wording for vacuuming. Cleaned out some extra superlatives. Added a couple of index entries for Routine Maintenance and added entry specific to Analyze. -- === The PostgreSQL Company: Command Prompt, Inc. === Sales/Support: +1.503.667.4564 || 24x7/Emergenc

[DOCS] Update to external_projects.sgml

Added stronger language for PgFoundry. Kept, but deprecated Gborg. Updated some api links Joshua D. Drake -- === The PostgreSQL Company: Command Prompt, Inc. === Sales/Support: +1.503.667.4564 || 24x7/Emergency: +1.800.492.2240 Providing the most comprehensive PostgreSQL solutions since