Replace many uses of PDHs with WCROOTs, particularly in places where the former is superfluous.  The primary remaining cases where PDHs are still used are where we need to flush the entries cache after a write operation.  I'll take a look at those in a bit.
Replace many uses of PDHs with WCROOTs, particularly in places where the
former is superfluous.  The primary remaining cases where PDHs are still used
are where we need to flush the entries cache after a write operation.  I'll
take a look at those in a bit.

* subversion/libsvn_wc/wc_db.c
  [everywhere]: When a PDH isn't used directly, don't fetch it.  Fetch and use
    a WCROOT instead.  Update various callers to take advantage of this fact.

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