Summary:

Port some JS models and tests to ES6

Review Request #10186 — Created Sept. 27, 2018 and submitted Oct. 9, 2018, 12:06 p.m.

Description

This patch updates some of our JS models and unit tests to use ES6, as
well as updates them to meet our current documentation standards.

Testing Done

Ran JS tests.

Issues

Description	From	Last Updated
Needs to be /**	david	Oct. 3, 2018, 5:49 p.m.

flake8 passed.

JSHint passed.

Addressed comments from /r/10136/.

-	505c4fd24fa659ee17d4a814eac498f1c4222d5c
+	fa425bcc086cb34ffaa1ab541da2abb1396a90f2

Revision 2 (+117 -40)

	reviewboard/staticbundles.py
	reviewboard/static/rb/js/diffviewer/models/diffFileModel.js
	reviewboard/static/rb/js/diffviewer/models/diffRevisionModel.js
	reviewboard/static/rb/js/diffviewer/models/tests/diffFileModelTests.js
	reviewboard/static/rb/js/diffviewer/models/tests/diffRevisionModelTests.js

flake8 passed.

JSHint passed.

Addressed feedback.

-	fa425bcc086cb34ffaa1ab541da2abb1396a90f2
+	b815c6aa5da9613a5f6ee459c4f23fad8b877e04

Revision 3 (+118 -41)

	reviewboard/staticbundles.py
	reviewboard/static/rb/js/diffviewer/models/diffFileModel.js
	reviewboard/static/rb/js/diffviewer/models/diffRevisionModel.js
	reviewboard/static/rb/js/diffviewer/models/tests/diffFileModelTests.js
	reviewboard/static/rb/js/diffviewer/models/tests/diffRevisionModelTests.js

flake8 passed.

JSHint passed.

Ship it!

Pushed to release-4.0.x (afe5a2e)