title: Singleton Not working in Spring Latest version
body: <p>I tried to set singleton as false or true in the configuration xml file as below</p>
  
  <p></p>
  
  <p>while validating it is throwing the below error</p>
  
  <p>cvc-complex-type.3.2.2: Attribute 'singleton' is not allowed to appear in element 'bean'.</p>
  
  <p>i am using spring version 4. Is there any other way to implement this property?</p>
  
  <p>Thanks in advance,
  Regards,
  Binil Kuriachan</p>