Customization to reset & forgot password templates added

Use the same way to customize forgot & reset password templates as is is possible for sign in/up templates:

Client or shared code (my model.js):
```
Meteor.startup(function () {
    // code to run on server at startup                                                                                                                                                   
    AccountsEntry.config({
        signUpTemplate: 'my-sign-up',
        signInTemplate: 'my-sign-in',
        forgotPasswordTemplate: 'my-forgot-password',
        resetPasswordTemplate: 'my-reset-password'
    });
});
```
My forgot-password.html:
```
<template name="my-forgot-password">
  <div class="wrapper">
    {{> header}}
    <section>
      {{> entryForgotPassword}}
    </section>
  </div><!--//wrapper-->
  {{> footer}}
</template>
```