Focus on the body before running focus test

(cherry picked from commit b2f27632ebaa0f975eb70d531925129cee4014b9)
Conflicts:
	test/unit/event.js
Add setup function for the event module
No ticket. Simplify the post-uglify task.
Updated author information.
Fix #13993. Save result of native inline handlers. Close gh-1368.
Fix some code style inconsistencies
Gruntfile: Remove project prefix from TestSwarm job name, close gh-1387
Warn on npm install if Bower isn't installed.
Edit bower install script based on comments. Close gh-1392.
Add bower install script and release scripts to jshint and pass lint
Update Sizzle to 1.10.10
No ticket: Correct typo in README section "rebasing". Close gh-1398.
Fix #14381: Update to Sizzle 1.10.11
(cherry picked from commit 64bdf4140b58c6dae72db78fc2f02832ed51a863)
No ticket: Fix subproject iframe tests
Update requirejs to compatible version, remove r.js
Fixes #14450. Remove CommonJS+AMD syntax.
Remove comment
Unify build script capabilities between branches. Specifically, added a special comment pragma for removing certain lines.
Fix #14432: Always return string from .css("z-index"). Close gh-1395.
No ticket: Small curCSS size optimizations