Updating subversion from 1.6.9nb1 to 1.6.12

Upstream changes:
Version 1.6.12
(21 Jun 2010, from /branches/1.6.x)
http://svn.apache.org/repos/asf/subversion/tags/1.6.12

  User-visible changes:
  * further improvements for issue #3242
  * allow deletion of uris which need character escaping (issue #3636)
  * fix errors with 'svn mkdir --parents' (issue #3649)
  * update address to which crash reports are sent (r901304)
  * check for server certificate revocation on Windows (r898048)
  * disable custom file mutexes on Windows (r879902, -16)
  * fix handling of peg revision'd copy targets (issue #3651)
  * more improvements to 'svn merge --reintegrate' (r935631)
  * allow copying of broken symlinks (issue #3303)
  * improve rep-sharing performance on high-concurrency repos (issue #3506)
  * fixed: added subtrees with mergeinfo break reintegrate (issue #3654)
  * fixed: assertion triggered by tree-conflicted externals (issue #3469)

  Developer-visible changes:
  * give windows devs more flexibility with sqlite versions (r944635)
  * allow the pack tests to work with low file descriptor limits (r937610)
  * improve exception handling on Windows Vista and 7 (r878447, -910, -916)

Version 1.6.11
(19 Apr 2010, from /branches/1.6.x)
http://svn.apache.org/repos/asf/subversion/tags/1.6.11

User-visible changes:
  * fix for repositories mounted via NFS (issue #3501)
  * enable TCP keep-alives in svnserve (r880552)
  * tighten restrictions on revprops for 'svnadmin verify' (r904594)
  * make ra_serf give better out-of-date information (issue #3561)
  * improve error message upon connection failure with svn+ssh:// (r922516)
  * allow 'svn log' on an uncommitted copy/move destination (r901752)
  * make 'svnadmin hotcopy' copy the fsfs config file (r905303)
  * mergeinfo improvements with non-inheritable mergeinfo (issue #3573)
  * make mergeinfo queries not require access to the repo root (issue #3242)
  * update URLs to refer the the new apache.org repository (r904301, -94)
  * update relative externals during a switch (issue #3390)
  * fix 'merge --reintegrate' with self-referential mergeinfo (r892050, -85)
  * improve wc-ng working copy detection (r929382)
  * improve handling of mergeinfo when using serf (r880461)
  * fixed: 'svnlook plist --revprop' with '-t TXN_NAME' (r917640, -8211)
  * fixed: file external from URL cannot overwrite existing item (issue #3552)
  * fixed: potential memory error in 'svn status' (r923674, -9)
  * fixed: merge records mergeinfo from natural history gaps (issue #3432)
  * fixed: theoretical possibility of DB corruption (r926151, -67)

Developer-visible changes:
  * disable checks for wc-ng working copies when running the test suite
  * on Windows, don't ignore move operation error codes (r896915)
  * more precise reporting of errors occuring with sqlite init (r927323, -8)
  * ensure rangelist APIs are commutative (r923389, -91)

Version 1.6.10
(Not released, see changes for 1.6.11.)

(sno)