Move pseudo RNG seeding to start of application

Also switched  to qrand() in place  of rand() where possible  as it is
thread safe.

git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@5716 ab8295b8-cf94-4d9e-aec4-7959e3be5d79

psk_reporter.cpp

@@ -38,7 +38,6 @@ PSK_Reporter::PSK_Reporter(MessageClient * message_client, QObject *parent) :
                            "00960004";        // Report time
 
 
-    qsrand(QDateTime::currentDateTime().toTime_t());
     m_randomId_h = QString("%1").arg(qrand(),8,16,QChar('0'));
 
     QHostInfo::lookupHost("report.pskreporter.info", this, SLOT(dnsLookupResult(QHostInfo)));