Add svnlite to places where svn is mentioned.

The Makefile part in the PR is solved already differently, so this
part is skipped form the PR The man page change change is slightly
changed to adapt to the way the Makefile works and to the spirit
of what is intended here.

Submitted by: Juan Ramón Molina Menor <info@juanmolina.eu>
PR: 194910
Sponsored by: Essen Hackathon