Add a new example of svn/client which outputs HTML from  Svn::Client::Context#log result.
Add a new example of svn/client which outputs HTML from 
Svn::Client::Context#log result.

* tools/examples/svnlog2html.rb: New example.

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