Refactored hook loader so that user hooks load in the same loop as core hooks
User hooks still have lower priority, but will now have their default, configure and initialize run in the same loops as the core hooks, rather than having all core hooks be completely finished loading before user hooks start.
Add a reference to the Sails instance that loaded each module
Now this.sails will refer to the encapsulating Sails app, even if globals are turned off.
Merge branch 'master' of github.com:balderdashy/sails