No banner comments in axe.min.js (PR #1112)

[jeeyyy]

Some time between releases 3.0.2 and 3.1.1 the banner comments on axe.js and axe.min.js have been lost.

/*! aXe v3.0.2
 * Copyright (c) 2018 Deque Systems, Inc.
 *
 * Your use of this Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This entire copyright notice must appear in every copy of this file you
 * distribute or in any file that contains substantial portions of this source
 * code.
 */

This caused rspec and cucumber in axe-matchers and attest-ruby tests which rely on jslib injection to fail.

expect(page).to have_received(:execute_script).with(a_string_starting_with ("/*! aXe"))

its(:jslib) { is_expected.to start_with("/*! aXe") }

Analysis:
v3.0.2 - Has banner comments.
v3.0.3 - Neither files have banner comments.
v3.1.1 - axe.min.js is missing the banner comments.

[jeeyyy]

I have worked around the test cases to verify other strings in those respective ruby test cases, so no immediate work is necessary for this.