Bump bleach from 3.1.0 to 3.1.2 in /elections_2016#2

dependabot[bot] wants to merge 1 commit intomastermarekmansell/tutorial-data:masterfrom

dependabot/pip/elections_2016/bleach-3.1.2marekmansell/tutorial-data:dependabot/pip/elections_2016/bleach-3.1.2Copy head branch name to clipboard