Generate backbone scaffold with Jasmine

[addyosmani]

Using the backbone scaffold generator together with --test-framework jasmine generates a backbone application with Mocha as the testing framework.

At the moment I haven't found a way to generate a backbone scaffold with jasmine.

from yeoman/yeoman#437

[revathskumar]

@addyosmani, @sindresorhus #120

[ramigg]

Can you do the same fix for Ember?

Also it will be good to have listed the jasmine generator option when I run: yeoman init --help

10x