Part of issue #1928:  fix gi-normous memory leak in 'svn propset -R URL'. (Of course, the command still isn't streamy, but that's another problem.)
Part of issue #1928:  fix gi-normous memory leak in 'svn propset -R URL'.
(Of course, the command still isn't streamy, but that's another problem.)

* libsvn_client/prop_commands.c 
  (remote_proplist): add a 'scratchpool' parameter.  Use scratchpool
  to do all recursion, looping, and repository access, while using
  original pool only for returning data.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@850109 13f79535-47bb-0310-9956-ffa450edef68

YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion