Errors when running the tests

[itziakos]

The travis-ci build fails with the following error:

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ERROR: test_run_engine (jyulb.fileio.isothermal3D.tests.test_jyu_engine.JYUEngineTestCase)

Running the jyu-lb modeling engine.

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Traceback (most recent call last):

File "jyulb/fileio/isothermal3D/tests/test_jyu_engine.py", line 37, in test_run_engine

engine = JYUEngine()

TypeError: Can't instantiate abstract class JYUEngine with abstract methods add_particles, delete_particles, get_particles, iter_particles

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Ran 4 tests in 1.014s

It looks that the library needs to be updated to supprot simphony 0.1.0x

[itziakos]

fixed in #10