Updated pywikibot/core
Project: pywikibot/externals/httplib2  6251b5be83cccb0d68ee999dfbc8a65e56292386

Merge remote-tracking branch 'origin/master' into HEAD

Conflicts:
	.gitignore
	python2/httplib2/cacerts.txt
	python3/httplib2/cacerts.txt
	setup.py

Change-Id: I3b1e2fc062ddb6c57b7a9d355b4e1f6832cacc38