LogHandler: fix for linux build

libraries/shared/src/LogHandler.cpp

@@ -16,6 +16,8 @@
 #include <QDebug>
 #include <QTimer>
 #include <QThread>
+#include <QMutexLocker>
+#include <QRegExp>
 
 #include "LogHandler.h"
 

libraries/shared/src/LogHandler.h

@@ -13,11 +13,11 @@
 #ifndef hifi_LogHandler_h
 #define hifi_LogHandler_h
 
-#include <qhash.h>
-#include <qobject.h>
-#include <qregexp.h>
-#include <qset.h>
-#include <qstring.h>
+#include <QHash>
+#include <QObject>
+#include <QSet>
+#include <QString>
+#include <QMutex>
 
 const int VERBOSE_LOG_INTERVAL_SECONDS = 5;