title: QTextBrowser - Override "Copy Link Location" context menu shortcut
body: <p>I have an application that uses a QTextBrowser control to display a website while offline, which is primarily made up of 'relative' links.</p>
  
  <p>Unfortunately, the default context menu for the QTextBrowser "Copy Link Location" action puts the relative link into the clipboard.</p>
  
  <p>I want to intercept that "Copy Link Location" action somehow so I can expand the relative path into the absolute path on the clipboard, so the user can then paste directly into their file manager or "Open file" dialog of another application.</p>
  
  <p>I know how to add additional actions to the context menu, or replace the context menu entirely. However the rest of the default menu is fine so I would prefer not to do that if it is possible.</p>
  
  <p>(Currently using Qt v4.6.2, can upgrade if necessary.)</p>