Fixed more deprecated
Updated notes for updated RDF link in RecentChanges
Updated for most recent patches to prepare for release.
Fixed calling of FilenameForPage which broke during previous patch.
Use newer password_hash function instead of crypt when available.
Fixed my lazy coding
Import EXTERNAL page flag again
New class _define_optional_suggestion for calculated paths that differ from the defaults. New spot for defining ADMIN_USER & pwd. Improved instructions. Better handling of default directories and calculate different paths for windows.