Bump the wc format to 21, moving tree conflict information from the parent nodes to the victims themselves.
Bump the wc format to 21, moving tree conflict information from the parent
nodes to the victims themselves.

* subversion/libsvn_wc/wc.h
  (SVN_WC__VERSION): Bump to 21.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1034436 13f79535-47bb-0310-9956-ffa450edef68

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