Merge branch 'master' into release
Merge branch 'release'
Removed unnecessary slicing.
Merge branch 'master' into release
Merge branch 'master' into master_python2.3
Merge branch 'master_python2.3' into release_python2.3
Python 2.5 if… else… expression used (like elsewhere).
Merge branch 'release' into release_python2.3
Fixed typo.
No need for uppercase letter local variables.
More direct code: the sum for the covariance coefficient is more directly calculated.
Fixed generator syntax error.
Added tests for numpy.mean(), with and without a specific axis.
Added test for mean() with axis.
Temporary fix for NumPy 1.8's mean().
Made the NumPy 1.8 mean() fix official.
Temporary fix in the unit tests for NumPy 1.8.
Merge branch 'master' into master_python2.3
Unit tests run fine.

Conflicts:
	uncertainties/unumpy/core.py
Simpler fix for NumPy 1.8.
Merge branch 'master' into master_python2.3