update models to new h4/stat_model
added skeleton bool for enabled/disabled
fixes on fixes

-- fixed SpecData to not store useless shit
-- fixed MedalData to not store useless shit
-- leveraged use of metadata
-- dual MySQL / MongoDB system (Mongo = big data, MySQL = leaderboard data)
-- move to /h4 models/controllers
-- Moved non-specific H4 stuff to Utils::