Linux: install docs in a more packaging-friendly way

Linux: Add initial support for manpages

common/yacreader_global.cpp

@@ -0,0 +1,21 @@
+#include "yacreader_global.h"
+#include <QAction>
+
+using namespace YACReader;
+
+QString YACReader::getSettingsPath()
+{
+#if QT_VERSION >= 0x050000
+    return QStandardPaths::writableLocation(QStandardPaths::DataLocation);
+#else
+	return QDesktopServices::storageLocation(QDesktopServices::DataLocation);
+#endif
+
+}
+
+void YACReader::addSperator(QWidget *w)
+{
+    QAction * separator = new QAction(w);
+    separator->setSeparator(true);
+    w->addAction(separator);
+}