title: setting ng-disabled in a directive from outer controller $scope
body: <p>The linked fiddle contains a simple directive with a <code>&lt;select&gt;</code>. I would like to disable the <code>&lt;select&gt;</code> tag by setting a variable in the outer controller. In devtools I see the value of ng-disabled to change from <code>false</code> to <code>true</code>, but the <code>&lt;select&gt;</code> remains enabled. Could someone help me on what am I doing wrong?</p>
  
  <p><a href="http://jsfiddle.net/bika/PRsH7/12/" rel="nofollow">http://jsfiddle.net/bika/PRsH7/12/</a></p>