3.0.0-alpha.5

 * 3.0.0-alpha.5 (Miroslav Bajtoš)
 * Use strong-remoting's new TypeRegistry (Miroslav Bajtoš)
 * test/user: don't attach User model twice (Miroslav Bajtoš)
 * app.enableAuth: correctly detect attached models (Miroslav Bajtoš)
 * Fix remoting metadata for "data" arguments (Miroslav Bajtoš)
 * Add instructions for upgrading context (Miroslav Bajtoš)
 * Discard sugar method for model creation (gunjpan)
 * Remove one-var exceptions no longer needed (Miroslav Bajtoš)
 * Rework email validation to use isemail (Miroslav Bajtoš)
 * Expose upsertWithWhere method (Sonali Samantaray)
