Move the fsfs-reorg tool to "dev" since it is devs only
and will never be more than a prototype

* tools/server-side/fsfs-reorg.c: move from here ...
* tools/dev/fsfs-reorg.c: ... to here
* build.conf
  (fsfs-reorg): update path


git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1431262 13f79535-47bb-0310-9956-ffa450edef68