Merge branch 'box-splice' into unstable

* box-splice:
  [box] test fixes
  [box] more tests for splice
  [box] fix do_splice
  [box] [client] [perl] makefile, bugfixes, move files to lib/
  [box] check field types for update
  [box] fix UpdateMulti for splice
  [box] fix do_field_splice
  [box] fix test
  [box] clean perl client code. splice support. alpha
  [box] clean perl client code. perl splice support. alpha
  [box] implement splice