Major update of jquery.ime from upstream

Changes:
* New tilde-based layouts for several languages of Africa:
  Kabyle, Kabiye, Kikuyu, Luganda, Lingala, Malagasy,
  Northern Sotho, Koyraboro Senni, Sango, Sotho, Venda
* Latin Pinyin transliteration keyboard
  https://github.com/wikimedia/jquery.ime/pull/545
* CSS and JS cleanup, to switch to stylelint and eslint.

Updating to
22407cf992

Bug: T212637
Change-Id: I167e572a6cc0f7c1c727e87e8ff361d88f87b40f

lib/jquery.ime/rules/nso/nso-tilde.js

@@ -0,0 +1,24 @@
+( function ( $ ) {
+	'use strict';
+
+	var nsoTilde = {
+		id: 'nso-tilde',
+		name: 'nso-tilde',
+		description: 'Northern Sotho input keyboard',
+		date: '2018-12-02',
+		URL: 'https://github.com/wikimedia/jquery.ime',
+		author: 'Amir E. Aharoni',
+		license: 'GPLv3',
+		version: '1.0',
+		patterns: [
+			[ '~S', 'Š' ],
+			[ '~s', 'š' ],
+			[ '~E', 'Ê' ],
+			[ '~e', 'ê' ],
+			[ '~O', 'Ô' ],
+			[ '~o', 'ô' ]
+		]
+	};
+
+	$.ime.register( nsoTilde );
+}( jQuery ) );