= QtWebKit build system cleanup =

The idea is to clean up and improve how we use Qmake to build QtWebKit. 

== Remove Symbian support ==

== Remove QTDIR_build and package-build ==

== Add top level (root) pro-file for organizing the project (for QtCreator) ==

== Use subdirs for derived sources instead of relying on build-webkit ==

== Use CONFIG+=GNUMake when present to improve dependency tracking ==

== TODO ==

    * Move SBOX_CHECK to helpers.pri
    * Move qt5-helper to helpers.pri