Use cors to avoid options issue and use the later version of swag mock

[jdcrecur]

Use cors to avoid options issue and use the later version of swag mock

[jdcrecur]

@tlivings I cannot see a reason for travis failing.

I am currently using swagger 2 and would like to utilize this package but with cors and the latest swagmock. The later swagmock enables controlling the array count returned amongst other things.

Could you have a look at this pr please if you have a moment?