Merge branch 'release/0.6.2' into develop
Next version is 0.7.0
test/linalg/norm: added a reference function supporting custom axes and generalised the test
linalg/norm: using the correct output shape in case of non-default axes

Fixes #13.
Some fixes for Python 2.6
Merge pull request #16 from SyamGadde/develop

Some fixes for Python 2.6
Removed remaining incompatibilities with Python 2.6. Fixes #15
setup.py: added Py3.4 to the list of classifiers
v0.6.3 released
Merge branch 'release/0.6.3'