Added Joyst_Model#SaveCreate() function to deal with objects where we just want to save without knowing if we have an ID
Extended Joyst_Model#Save() to also accept hashes rather than (id,hash)
Added support for method routing into Joyst_Controller
Added a common errors section into install instructions
BUGFIX: Routing would always resolve even when it shouldn't
BUGFIX: PHP uselessly returns true for all isset() queries on fields for some reason