title: Flex builder3 is not generating html wrapper when targeting flex 4 sdk
body: <p>In Flex builder 3 when I create a new flex application targeting the flex 4 sdk, it wont generate a html wrapper file.</p>
  
  <p>I have hunted around the web for answers, but no success. I have made sure the box is checked in the project properties to generate html wrapper.</p>
  
  <p>The only workaround is to target an older version of the sdk (i.e. 3.2), which will cause the wrapper to be generated. Then I can revert the project to sdk 4. This then means I can never do a clean of my project because this will result in the wrapper being deleted.</p>
  
  <p>Has anyone else come across this? Is this just a bug with Flexbuilder3?</p>