Bug#754478: Enable journald support

[Lisandro Damián Nicanor Pérez Meyer <lisandro@debian.org>]

Source: qtbase-opensource-src
Version: 5.3.1+dfsg-3
Severity: wishlist

As a reminder for ourselves, qtbase is not being built with journald support
in Qt 5.3.x.

We should not enable this unless upstream finds and codes a way to detect it
on runtime, else users not using journald will not get output.

This means no journald support for 5.3.x (and thus, Jessie).

Recheck with 5.4.x or above.

Check [0] and the rest of the thread for more info.

[0] <http://lists.qt-project.org/pipermail/development/2014-July/017620.html>

-- System Information:
Debian Release: jessie/sid
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.14-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=es_AR.UTF-8, LC_CTYPE=es_AR.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash