Option to exclude strategy.token from some ajax requests.

I make some cross domain ajax requests from my Ember app using ember-auth.
But I don't want the tokenKey parameter to be automatically added to these requests.
This parameter could overwrite a mandatory parameter of the API requested.

So I added an option to exclude strategy.token from some ajax requests based on the domain name with this option: 
``tokenDomainsBlacklist: ['http://api1.com:3000', 'http://api2.com:4000']``

Hope it make sense for you too ;)