Merge branch 'restful-naming' into 'master'

Restful naming

The name endpoint is more common for RPC interfaces http://en.wikipedia.org/wiki/Web_Services_Description_Language#Objects_in_WSDL_1.1_.2F_WSDL_2.0 where the url is the same for different calls on the same endpoint. With restful interfaces the url changes.

doc/api/README.md

 # GitLab API
 
-## End-points
+## Resources
 
 + [Users](users.md)
 + [Session](session.md)