Use mw.Api.plugin.options to set user options

This requires MediaWiki version 1.25+.

Change-Id: I3a76b0b4ec403b3acdc29e64b0c750a3b57e252a

resources/js/ext.uls.init.js

@@ -82,12 +82,7 @@
 			}
 
 			api = new mw.Api();
-			// @todo Change this to api.saveOption when ULS minimum MW version is 1.25
-			api.postWithToken( 'options', {
-				action: 'options',
-				optionname: 'language',
-				optionvalue: language
-			} )
+			api.saveOption( 'language', language )
 			.done( function () {
 				location.reload();
 			} )

resources/js/ext.uls.preferences.js

@@ -149,11 +149,10 @@
 				callback.call( this, true );
 			} else {
 				// Logged in user. Use MW APIs to change preferences
-				new mw.Api().postWithToken( 'options', {
-					action: 'options',
-					optionname: ulsPreferences.preferenceName,
-					optionvalue: JSON.stringify( ulsPreferences.preferences )
-				} ).done( function () {
+				new mw.Api().saveOption(
+					ulsPreferences.preferenceName,
+					JSON.stringify( ulsPreferences.preferences )
+				).done( function () {
 					callback.call( this, true );
 				} ).fail( function () {
 					callback.call( this, false );