Backported feature in Qt Creator: autodetection of compilers masked by ccache

[Lisandro Damián Nicanor Pérez Meyer <perezmeyer@gmail.com>]

Hi!

Some time ago I requested a new feature to allow the autodetection of
ccache-masked compilers:

<https://bugreports.qt.io/browse/QTCREATORBUG-23473>

This got implemented and I backported the change to 4.11.0-2. If
anyone uses ccache please give it a try.

Thanks!

-- 
Lisandro Damián Nicanor Pérez Meyer
http://perezmeyer.com.ar/
http://perezmeyer.blogspot.com/