Previously the base path for the API was hardcoded to `/api` and the
specified version.
This was not obvious that the generated code was setting that base path
and it was not flexible for serving the API under a different path than
`/api`.
We will likely need to set a different base path if we pretend to serve
the new back office API that we are going to implement alongside the
current admin API until the new back office is fully implemented and
verified that works properly.
This commit also fix add the base path of the endpoints to the
documentation because it was even more confusing for somebody that wants
to use the API having to find out them through looking to the generated
code.
Change-Id: I6efab6b6f3d295129d6f42f7fbba8c2dc19725f4