Fix 428e9dad72e79ae8c396f6b50cd0b3f13b0f202d.

copied dict was completely replacing current dict, so _partition_id and _computer_id were deleted.
Fix broken test introduced in 30a3eec6c8162d9174168e4e7d22d389d8db9020.
support for --state argument in request
change default client cfg to ~/.slapos/slapos-client.cfg