DOC: logit and expit docstrings -- fix typo and add versionadded
DOC: typo contrained->constrained
DOC: versionadded for some special functions
Merge pull request #3027 from argriffing/typo-contrained

DOC: typo contrained->constrained
Merge pull request #3028 from argriffing/versionadded-xlogy

DOC: versionadded for some special functions
GEN: special: regenerate _ufuncs.pyx
MAINT: run generate_ufuncs.py
Merge pull request #3031 from WarrenWeckesser/special-regen-ufuncs

GEN: special: regenerate _ufuncs.pyx
MAINT: remind old scipy 0.10.0 release notes about logit and expit
Merge pull request #3026 from argriffing/expit-logit-docstrings

DOC: logit and expit docstrings -- fix typo and add versionadded