"new String()" as 'string' instead of 'object'

[davelosert]

With all the dazzle about the promises, i totally forgot about the other Spec we were talking with new String() returning type string instead of object. I changed that now and also added a test to make sure new Number() actually returns type number.

Sorry for this :D

[coveralls]

Coverage remained the same at 100.0% when pulling 6867882 on Charminbear:string-object-as-string into 2892123 on chaijs:master.

[coveralls]

Coverage remained the same at 100.0% when pulling 7ea0a92 on Charminbear:string-object-as-string into 2892123 on chaijs:master.

[keithamus]

😄