[core] improve countly user password change experience

Author: waiterZen

api/parts/mgmt/users.js

@@ -259,8 +259,7 @@ usersApi.createUser = function(params) {
 
                 member[0].api_key = common.md5Hash(member[0]._id + (new Date().getTime()));
                 common.db.collection('members').update({ '_id': member[0]._id }, { $set: { api_key: member[0].api_key } }, function() { });
-                const escapedHTMLPass = passwordNoHash.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;').replace(/"/g, '&quot;');
-                mail.sendToNewMember(member[0], escapedHTMLPass);
+                mail.sendToNewMember(member[0], passwordNoHash);
                 plugins.dispatch("/i/users/create", {
                     params: params,
                     data: member[0]