Add missing dependency

`sails new app` was borked. It requires `node-switchback` which hasn't been added to the dependencies.
Merge pull request #1310 from RWOverdijk/patch-2

Add missing dependency
Added blueprint controller back into core (apps may still customize blueprints by creating api/blueprints/[find|create|update|destroy].js overrides)
Tests pass
App-level blueprints are optional (verified by hand but needs automated testing.)
Disable blueprint action/controller config for now (use only blueprint route config)
Merge branch 'v0.10' into generators

Conflicts:
	.jshintrc
	package.json