Update jquery.ime from upstream

* Adding Fon keyboard.
* Fixing Grunt license string

Updating to
859e737275

Change-Id: I75aab1e288e88f0ce6dfa762eda8c6e78d0f5d01

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

@@ -0,0 +1,26 @@
+( function ( $ ) {
+	'use strict';
+
+	var fonTilde = {
+		id: 'fon-tilde',
+		name: 'fon-tilde',
+		description: 'Fon input keyboard',
+		date: '2018-05-18',
+		URL: 'http://github.com/wikimedia/jquery.ime',
+		author: 'Mahuton POSSOUPE',
+		license: 'GPLv3',
+		version: '1.0',
+		patterns: [
+			[ '~D', 'Ɖ' ],
+			[ '~d', 'ɖ' ],
+			[ '~E', 'Ɛ' ],
+			[ '~e', 'ɛ' ],
+			[ '~O', 'Ɔ' ],
+			[ '~o', 'ɔ' ],
+			[ '~/', '\u0341' ], // Combining acute tone mark
+			[ '~\\\\', '\u0340' ] // Combining grave tone mark
+		]
+	};
+
+	$.ime.register( fonTilde );
+}( jQuery ) );