Integrated dynamic composition routing through map.php.

On a host which does not map directly from URL to a directory structure, Approach exposes a composition type hierarchy. For instance, /blogpost/compose.php now maps to approachfoundation.org/blog in the default database, any child of the root blogpost composition will use the same compose.php.

Compositions define instanced paths of parent/child types. May or may not sounds complicated, actually makes organization quite simple.

Also of note, the GenerateDatabase.sql is a SQL dump made via ther Adminer tool. Let me know if you have any issues creating the "approach" database. Please, oh please, feel free to enlighten me about my poor database practices - realizing some places I'll be quite stubborn however =)

Signed-off-by: Garet Claborn <garet@approachfoundation.org>