title: Eclipse Indigo: Compiler compliance level 1.7 is missing from the list
body: <p>I installed Java 7 JDK (jdk-7u9-windows-x64.exe) and started up Eclipse Indigo to try a statement using the new diamond syntax. It does not compile. 
  I have added jdk1.7.0_09 in Preferences - Java - Installed JREs. 
  Under Preferences - Java - Compiler I wanted to set 1.7 compliance level, but my drop-down list only contains 1.3 - 1.6. How can I get 1.7 to appear here?<br>
  Version: Indigo Release Build id: 20110615-0604</p>