Empty primary phone entry in shipping form causing stack trace.

Issue #401
#329 - Safer to use direct variable instead of "this" here
#311 - Incorrect path to locally served jquery lib
Merge remote-tracking branch 'origin/BroadleafCommerce-3.0.x' into develop

Conflicts:
	core/broadleaf-framework-web/src/main/java/org/broadleafcommerce/core/web/controller/checkout/BroadleafCheckoutController.java