added fallback update option for serviceprovider error

There is a possibility that an "Class 'Illuminate\\Foundation\\Providers\\ConsoleSupportServiceProvider'
 not found" error occures when upgrading to 4.1. If someone runs the command in the updated docs it correctly upgrades the system.

Tried it out my self and it solved it for me as well.

Credits to jjoel http://forums.laravel.io/viewtopic.php?pid=64885