tests/test_advanced_image_processing.py: Set number of threads for SPAMS to 1.
tests/test_nanshe_learner.py: Set number of threads for SPAMS to 1.
tests/test_spams_sandbox.py: Set number of threads for SPAMS to 1.
tests/test_nanshe_learner.py: Set num_drmaa_cores to 1.
tests/test_nanshe_learner.py: Dropped unneeded print statements.
tests/test_nanshe_learner.py: Remove data copying commands in test suite.
docs/modules.rst: Add synthetic_data to the modules list.
docs/nanshe.rst: Add nanshe.binary_image_processing module.
docs/nanshe.rst: Remove nanshe.pathHelpers module.
docs/synthetic_data.rst: Added the synthetic_data module.
docs/spams_sandbox.rst: Added the spams_sandbox module.