* project_faq.html:  add FAQ about global revision number.  the   response is an edited version of Bill Tutt's recent email reply.
* project_faq.html:  add FAQ about global revision number.  the
  response is an edited version of Bill Tutt's recent email reply.

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