Version Control With Subversion Source

* en/book/ch02-basic-usage.xml
(svn.tour.help): Update 'svn help' output.
(svn.tour.initial): Update the 'What Is This .svn Directory?'
sidebar, including giving it a new name.
(svn.tour.history.browsing.list): Update 'svn list' output, and
don't use svn.collab.net in the examples.