how to change app=users to app=webservices

Hi,

I am using com_api and building off of the users plugin.

Currently I Call.
http://localhost/joomla/index.php?option=com_api&app=users&resource=api&key=ce411cd1fkeya79f6d5ca&format=raw

but would like for it to be:
http://localhost/joomla/index.php?option=com_api&app=webservices&resource=api&key=ce411cd1fb3ca261f586dc3a79f6d5ca&format=raw

I changed:
- users.php to webservices.php and the class name inside it from plgAPIUsers to plgAPIWebservices
- users.xml to webservices.xml
- the users folder with all the resources in it to webservices

It still doesn't seem to work. Am I missing something? do I need to change the router (com_api) code?

Thank you