Fix javascript error in "IE 8.0/Tablet PC" browser (#1490210)

CHANGELOG

@@ -10,6 +10,7 @@ CHANGELOG Roundcube Webmail
 - Fix bug where Drafts list wasn't updated on draft-save action in new window (#1490225)
 - Fix so "set as default" option is hidden if identities_level > 1 (#1490226)
 - Fix bug where search was reset after returning from compose visited for reply
+- Fix javascript error in "IE 8.0/Tablet PC" browser (#1490210)
 
 RELEASE 1.1-rc
 --------------

program/js/app.js

@@ -1954,7 +1954,7 @@ function rcube_webmail()
     // attach events
     $.each(fn, function(i, f) {
       row[i].onclick = function(e) { f(e); return rcube_event.cancel(e); };
-      if (bw.touch) {
+      if (bw.touch && row[i].addEventListener) {
         row[i].addEventListener('touchend', function(e) {
           if (e.changedTouches.length == 1) {
             f(e);

program/js/list.js

@@ -154,7 +154,7 @@ init_row: function(row)
     row.onmousedown = function(e){ return self.drag_row(e, this.uid); };
     row.onmouseup = function(e){ if (e.which == 1) return self.click_row(e, this.uid); };
 
-    if (bw.touch) {
+    if (bw.touch && row.addEventListener) {
       row.addEventListener('touchstart', function(e) {
         if (e.touches.length == 1) {
           self.touchmoved = false;