Add a list of generated files to .gitignore
Use explicit filenames rather than globs
Check directly for elements in dictionaries, not their .keys()
Iterate directly over dictionaries, not their .keys()
MAINT: signal: clean up some C code to eliminate a few compiler warnings
STY: optimize: PEP8 clean up, plus a couple simplifications of variable swapping, in optimize.py
MAINT: optimize: In optimize._optimize_newtoncg, move a call to get the floating point epsilon outside of the loop
DOC: optimize: add an example and a note about the step size to the docstring of check_grad
MAINT: optimize: remove a comment in minpack.py about fixed_point--the same information is in the docstring
MAINT: optimize: update import style and simplify a couple variables swaps in optimize.py
Merge pull request #488 from WarrenWeckesser/optimize-tweaks

MAINT: optimize: A little bit of spring cleaning
BUG: optimize/lbfgsb: fix a code path printing even when iprint < 0
Merge pull request #480 from timleslie/update_gitignore

MAINT: Update .gitignore with generated files
Merge pull request #489 from pv/mathieu-bug

BUG: special/specfun: fix bug in MTU12
Merge branch 'master' into remove-keys
Add support for the context manager protocol to netcdf_file objects
Merge pull request #491 from timleslie/netcdf-context-manager

ENH: io: Add support for the context manager protocol to netcdf_file objects
Merge pull request #490 from timleslie/remove-keys

MAINT: Remove redundant use of .keys()
Added test for the truncnorm.ppf and truncnorm.isf
Fix for ticket #1131: ppf and isf for Lognormal fails on array-like 'loc' or 'scale'