RemoteLinux: More preparations for introducing an abstract device class.

- Introduce clone() method.
- Rename "osType" to "type" and "deviceType" to "machineType".
- Move machine type display out of generic settings widget.
- Put only immutable attributes into the device constructor and set the
others via setters. As part of this, also give the
SshConnectionParameters a default proxy type. The necessity to give one
to the constructor explicitly was for historical reasons.

Change-Id: I84757b1b2d6371544b9ab1f3290973e5498176ce
Reviewed-by: Kai Koehne <kai.koehne@nokia.com>

src/plugins/remotelinux/genericlinuxdeviceconfigurationwidget.cpp

@@ -159,6 +159,10 @@ void GenericLinuxDeviceConfigurationWidget::updatePortsWarningLabel()
 
 void GenericLinuxDeviceConfigurationWidget::initGui()
 {
+    if (deviceConfiguration()->machineType() == LinuxDeviceConfiguration::Hardware)
+        m_ui->machineTypeValueLabel->setText(tr("Physical Device"));
+    else
+        m_ui->machineTypeValueLabel->setText(tr("Emulator"));
     m_ui->portsWarningLabel->setPixmap(QPixmap(":/projectexplorer/images/compile_error.png"));
     m_ui->portsWarningLabel->setToolTip(QLatin1String("<font color=\"red\">")
         + tr("You will need at least one port.") + QLatin1String("</font>"));