Log Message:
Update SVK to 2.0.2.

The changee since 2.0.1 are:
  Mirror subsystem
    * be more friendly when trying to relocating incorrect mirror path.
  Merge subsystem
    * Fix a problem when repeatedly merging renames tracked with
      --track-renames, and when merging back such files.
    * Fix the "file not found at revision 0" bug when smerge to a
      mirror where copy source is not normalized.
    * Fix a bug that deletes inside copies aren't properly merged
      across branches even the status output says so.
    * Fix a bug when merging copies across branches we be using
      incorrect dst revision causing "file not found at revision 0".
    * Fix a bug where copies outside the mirror source across merge
      are not expanded as non-copies.
    * Fix an inconsistency for smerge -IC behaviour when the base is
      a txn path.
  Pullyu
    * properly translate to local path when mirroring remote root.
    * Fix pullyu for translating "included" records, which are
      replaced entries.
  Others
    * Improve error reporting when failed to save config.
    * Perl 5.9.5 compatibility fixes.
    * Work around a problem that push -P might be using outdated
      memory pool.
    * svk diff -r:123 should report invalid -r rather than blow up.
    * Add -i as shorthand for --interactive in svk ci.
    * Various win32 fixes.
    * Various i18n fixes.