Implemented `sampling_interval` argument to `Population.record()` for NEST backend
Began adding support for Python 3.3. Unit tests that do not require a simulator now pass with both 2.7 and 3.3.
Added `utility` module to setup.py
Merge branch 'sampling_interval' of https://github.com/antolikjan/PyNN
bug correction
cleanup
test_hardware_brainscales.py added to test/system
test_hardware_brainscales added. First tests of cell type IF_cond_exp.
specific hardware.brainscales tests added
test_hardware_brainscales.py modified. Still failing loop setup-run-end. Basic cell types added in scenrios testing
make test_hardware_brainscales used unitest-like tests
structure to perform unittests with the hardware
better hardware test coverage for test_population.py
copying relevant unittests to hardware/unittests
two unit tests made hardware compatible: test_populationview.py and test_simulation_control.py
change parameter names to be tested in hardware tests
Update .travis.yml

this will exclude the backends subdirectory from the nosetests, as desired
Merge branch 'unittests_with_backends' into test_brainscales_backend
implemented transformation of parameters for random distributions specifying synaptic weights
solve the SpikeSOurceArray recording issue in hardware backend, in which the ids are negative and in the reversed order