path option is now used when generating url paths

[beniutek]

previously when generating routes in rails app and using path option like this:

jsonapi_resources users, path: 'members'

the generated routes from rake routes:

          POST /users   /users#create
users GET   /users   /users#index
etc

now when we specify this option

          POST /members /users/#create
users GET   /members /users#index
etc

helpers stay the same, only url path changes

if path option is not specified or is nil then routes generated make use of the @resource_type as before

I was under impression that we want to generate and handle routes in similar fashon as in

http://guides.rubyonrails.org/routing.html#translated-paths

that's why im making this change

[beniutek]

if :path options is not set in routes.rb, it takes the @resource_type to formatter to form the name for the path

[kbroderick]

Any chance of this getting merged in? I would find this useful so that we can abstract out some of the class-structure details in our project that we hope to refactor in the future.