Qt4's moc is not able to expand QT_VERSION_CHECK which may lead
to invalid codegen when used for backwards compatibility work.
Replaced all occurances with explicit check against numeric
version which are treated correctly. Even though bad interactions
might be rare we should no longer use this macro as long as we
want to compile with Qt 4. Also see:
http://lists.qt-project.org/pipermail/interest/2013-August/008351.html
Changed from setDefaultCaCertificates to addDefaultCaCertificates because
Murmur adds CA certificates in sslCert before calling MumbleSSL::addSystemCA.
Original patch written by Marc Deslauriers <marc.deslauriers@canonical.com>
/usr/include/QtCore/qstring.h: In static member function 'static void MumbleSSL::addSystemCA()':
/usr/include/QtCore/qstring.h:588:5: error: 'QString::QString(const char*)' is private
