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/abstractembeddedlinuxtarget.cpp

@@ -42,12 +42,13 @@ using namespace Qt4ProjectManager;
 namespace RemoteLinux {
 
 AbstractEmbeddedLinuxTarget::AbstractEmbeddedLinuxTarget(Qt4Project *parent, const QString &id,
-        const QString &supportedOsType) :
+        const QString &supportedDeviceType) :
     Qt4BaseTarget(parent, id),
     m_buildConfigurationFactory(new Qt4BuildConfigurationFactory(this)),
-    m_supportedOsType(supportedOsType),
+    m_supportedDeviceType(supportedDeviceType),
     m_deploymentInfo(new DeploymentInfo(this)),
-    m_deviceConfigModel(new Internal::TypeSpecificDeviceConfigurationListModel(supportedOsType, this))
+    m_deviceConfigModel(new Internal::TypeSpecificDeviceConfigurationListModel(supportedDeviceType,
+        this))
 {
 }