Namespaced everything under Msf::Db::PostgreSQL, renamed top-level include to postgres_msf to disambiguate.
Included recursive requires for all files.
Noted the IO monkeypatch -- should revisit.
Added a testcase for database connections.
The reason for the namespacing is to avoid stomping on any existing Postgres-PR installations, or any other requires named "postgres" or "postgresql" or even "pg," since these may or may not support the method's we're using here. The seperate namespace also allows for easier integration of custom commands later on.
git-svn-id: file:///home/svn/framework3/trunk@8342 4d416f70-5f16-0410-b530-b9f4589650da
