Long documentation url : Use long request mapping path in documentation

Hello,

In our project we wanted to be able to use swagger-springmvc with long request mapping path in controller (such as /root/{id}/path).
As we did not manage to do that in the current version (0.2.5-SNAPSHOT), we modified the DocumentationController.getApiDocumentation request mapping from /apiName to /**.

You may be interested in using this modification too.

Regards