Passed host wiki to saver constructors

core/modules/savers/download.js

@@ -15,7 +15,7 @@ Handles saving changes via HTML5's download APIs
 /*
 Select the appropriate saver module and set it up
 */
-var DownloadSaver = function() {
+var DownloadSaver = function(wiki) {
 };
 
 DownloadSaver.prototype.save = function(text) {
@@ -28,6 +28,7 @@ DownloadSaver.prototype.save = function(text) {
 		link.setAttribute("download","tiddlywiki.html");
 	}
 	link.click();
+	return true;
 };
 
 /*

core/modules/savers/firefox.js

@@ -12,7 +12,7 @@ Handles saving changes via Firefox's XUL APIs
 /*global $tw: false */
 "use strict";
 
-var FirefoxSaver = function() {
+var FirefoxSaver = function(wiki) {
 };
 
 FirefoxSaver.prototype.save = function(text) {

core/modules/wiki.js

@@ -488,7 +488,7 @@ exports.initSavers = function(moduleType) {
 	for(var t=0; t<$tw.plugins.moduleTypes[moduleType].length; t++) {
 		var saver = $tw.plugins.moduleTypes[moduleType][t];
 		if(saver.canSave()) {
-			this.savers.push(saver.create());
+			this.savers.push(saver.create(this));
 		}
 	}
 	// Sort the savers into priority order