Currently we always require write access to the repository.
Currently we always require write access to the repository.

* doc/book/book/ch06.xml
  The book implies that you can get by with read only access.  Might
  be nice to explain this why write access is necessary.  But I'll stick
  to minimal fixes at this late hour.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion