Added legend.framealpha to rcParams, as alluded to by axes.legend docstring
Added legend.framealpha line to template rcparam file
whats_new statement added
Add proper search for libpng and freetype on win32 during install.

Allow for getstatusoutput on win32 and use INCLUDE and LIB env vars

Back off on the use of the environmental variables

Pinpointed necessary location for INCLUDE

Fix link to matplotlib-winbuild

Normalize handling of library location finding

Include more paths in the search

Restore _check for_pkg_config behavior

Implement getstatusoutput on win32

Remove win32 getstatusoutput in favor of explicit check_include_file
Merge pull request #3510 from blink1073/fix-setupext

BLD : improve setupext.py on windows
Merge pull request #3369 from e-q/legendFrameAlpha

BUG : Added legend.framealpha to rcParams, as mentioned in axes.legend docstring
Provide an informative error message if something goes wrong in setfont
Merge pull request #3545 from mdehoon/setfont_informative_error_message

MNT : Provide an informative error message if something goes wrong in setfont
DOC: fixed references from qt4 to qt5 in test_backend_qt5
Merge pull request #3556 from cimarronm/test_backend_qt5_doc_fixes

MNT : copy/paste corrections in test_backend_qt5
Supports locale-specified encoding for rcfile.

This commit fixes issue #1317.  The locale for the encoding is obtained from
the Python `locale` module, which can be specified by the `LANG` environment
variable.

This was tested by adding a test rc file encoded in UTF-32-BE, and testing that
it decoded correctly.
Merge pull request #3575 from frutiger/locale_encoded_rcfile

Supports locale-specified encoding for rcfile.
Fixes test to assert instead of print

This commit fixes a test added as part of #3575, which was done to fix #1713.
Merge pull request #3578 from frutiger/fix_test_for_issue_1713

Fixes test to assert instead of print