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.
tests/test_nanshe_learner.py: Set number of threads for SPAMS to 1.
tests/test_nanshe_learner.py: Set num_drmaa_cores to 1.
nanshe/pathHelpers.py: Copied pathHelpers from lazyflow to avoid having to import lazyflow to see if it reduces SPAMS crashes.
nanshe/nanshe_learner.py: Use local copy of pathHelpers.
nanshe/tiff_file_format.py: Use local copy of pathHelpers.