PY3: __init__ files use relative imports
PY3: print statement to functions
PY3: Unpack some tuple arguments in pipe.py
PY3: StringIO import in pipe.py
PY3: Removed tuple arguments in lineshapes1d.py and sparky.py
PY3: xrange replaced with range
PY3: Python 3 support in pipe.py module.
PY3: test_pipe.py ported to Python 3.
PY3: Ported pipe_proc.py module and related tests.
PY3: tecmag.py module ported to Python 3.
PY3: Fixed bugs in varian.py module.
PY3: string_type checking in test_convert tests.
PY3: Ported sparky.py module and tests to Python 3.
PY3: Ported agilent.py module are related tests.
PY3: Ported bruker.py module and related tests to Python 3.
PY3: Ported rnmrtk modules and related tests.
PY3: Ported simpson.py and related tests.
PY3: Default write mode is 'wb' in both Python 2 and 3.
PY3: Various changes getting convert tests to pass.
PY3: Interget division in bruker.py.