BUG: ndimage: fix swapped 64-bitness test
BUG: only normalize eigenvectors if they have been computed
Merge pull request #3122 from andrenarchy/eig-fix

BUG: linalg: fix division by zero in generalized eigenvalue problem
pep8ify distribution.py

- mostly missing whitespace after ","
- linebreaks
- indentation
Use more common form of triple-quote strings (pep8 compliant).
ENH: Add callback to slsqp in scipy.optimize
Merge pull request #3120 from matthias-k/slsqp-callback
Merge pull request #3126 from sotte/pep8_distributions

pep8ify stats/distributions.py
ENH: optimize: choose method automatically in minimize

Make usage easier by choosing an appropriate solver.
Merge pull request #3117 from pv/ndimage-label-fix2

BUG: ndimage: fix swapped 64-bitness test
Merge pull request #3133 from pv/minimize-method-auto

ENH: optimize: choose method automatically in minimize