spams_sandbox/spams_sandbox.py: Added documentation for parameter output_array of run_multiprocessing_array_spams_trainDL.
spams_sandbox/spams_sandbox.py: Dropped matrix conversion as it is unnecessary.
spams_sandbox/spams_sandbox.py: Rename out_queue to queue.
spams_sandbox/spams_sandbox.py: When using the queue, also provide the first array by using the queue.
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