Added sample MySQL schema.
Initial commit of symfony2 reference implementation.
Added sort params to remixes endpoint.

Updated Data model to limit and sort results by these endpoint params.
Updated README endpoint docs.

Albums can have multiple games.
Changed the name_jp artist field to real_name.
(cherry picked from commit 63e80c2ff6ed95f8a08fb8a30a1b67cea9cc0d3b)
Refactored with some clojure branch design ideas.
Example schema updates.

Renamed artists.name_jp column to real_name.
Added missing publisher column to albums table.
Refactor to use models instead of plain arrays.

Added a Service layer to map db results to models.
Models will now partially populate themselves in their constructors from db results.
Removed Entity and Listing sub-packages from the Model namespace.
TODO: consider ORM mapping.
More example schema updates.

Updates to chiptunes game column.
Added org and system references tables.
Minor ApiController fixes.
Remixes Service doc fix.
Added /songs endpoints.
Added /games endpoints.
Added /albums endpoints.
Added /artists endpoints.
Removed unnecessary inheritance.
Added /systems endpoints.
Added /orgs endpoints.
Added /chiptunes endpoints.
Updated endpoint spec for Organization Composers.
Updated Model docs.