Start making the Maemo support more generic.

This includes:
    - decoupling deploy configurations from targets (Reviewed-by: dt)
    - adding a "Generic Linux" device type
    - splitting up the Maemo deployment step into small pieces that
      can be combined in different ways (and much more easily maintained)
    - adding a new version handler for pro.user files
      (Reviewed-by: Tobias Hunger)

Also:
  - Add and use an SSH manager class for easier connection sharing.
  - Make the SSH connection parameters a fixed attribute of the connection.

src/plugins/qt4projectmanager/qt-maemo/abstractmaemodeploystep.h

@@ -0,0 +1,139 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** No Commercial Usage
+**
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+**
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**************************************************************************/
+
+#ifndef ABSTRACTMAEMODEPLOYSTEP_H
+#define ABSTRACTMAEMODEPLOYSTEP_H
+
+#include "maemodeployable.h"
+#include "maemodeployables.h"
+#include "maemodeviceconfigurations.h"
+
+#include <projectexplorer/buildstep.h>
+
+#include <QtCore/QHash>
+#include <QtCore/QList>
+#include <QtCore/QPair>
+#include <QtCore/QSharedPointer>
+
+QT_BEGIN_NAMESPACE
+class QEventLoop;
+QT_END_NAMESPACE
+
+namespace Utils { class SshConnection; }
+
+namespace Qt4ProjectManager {
+class Qt4BuildConfiguration;
+namespace Internal {
+class AbstractMaemoPackageCreationStep;
+class MaemoDeviceConfig;
+class Qt4MaemoDeployConfiguration;
+
+class AbstractMaemoDeployStep : public ProjectExplorer::BuildStep
+{
+    Q_OBJECT
+public:
+    virtual ~AbstractMaemoDeployStep();
+    QSharedPointer<const MaemoDeviceConfig> deviceConfig() const { return m_deviceConfig; }
+    void setDeviceConfig(int i);
+    bool currentlyNeedsDeployment(const QString &host,
+        const MaemoDeployable &deployable) const;
+    void setDeployed(const QString &host, const MaemoDeployable &deployable);
+    MaemoPortList freePorts() const;
+    Qt4MaemoDeployConfiguration *maemoDeployConfig() const;
+    bool isDeploymentPossible(QString &whyNot) const;
+
+    Q_INVOKABLE void stop();
+
+signals:
+    void done();
+    void error();
+    void deviceConfigChanged();
+
+protected:
+    AbstractMaemoDeployStep(ProjectExplorer::BuildStepList *bc,
+        const QString &id);
+    AbstractMaemoDeployStep(ProjectExplorer::BuildStepList *bc,
+        AbstractMaemoDeployStep *other);
+
+    enum BaseState { BaseInactive, StopRequested, Connecting, Deploying };
+    BaseState baseState() const { return m_baseState; }
+
+    void raiseError(const QString &error);
+    void writeOutput(const QString &text, OutputFormat = MessageOutput);
+    void setDeploymentFinished();
+    const AbstractMaemoPackageCreationStep *packagingStep() const;
+    QString deployMountPoint() const;
+    const Qt4BuildConfiguration *qt4BuildConfiguration() const;
+    QSharedPointer<Utils::SshConnection> connection() const { return m_connection; }
+
+private slots:
+    void start();
+    void handleConnected();
+    void handleConnectionFailure();
+    void handleProgressReport(const QString &progressMsg);
+    void handleRemoteStdout(const QString &output);
+    void handleRemoteStderr(const QString &output);
+    void handleDeviceConfigurationsUpdated();
+
+private:
+    virtual bool init() { return true; }
+    virtual void run(QFutureInterface<bool> &fi);
+    virtual ProjectExplorer::BuildStepConfigWidget *createConfigWidget();
+    virtual QVariantMap toMap() const;
+    virtual bool fromMap(const QVariantMap &map);
+
+    virtual bool isDeploymentPossibleInternal(QString &whynot) const=0;
+    virtual bool isDeploymentNeeded(const QString &hostName) const=0;
+    virtual void startInternal()=0;
+    virtual void stopInternal()=0;
+
+    void baseCtor();
+    void addDeployTimesToMap(QVariantMap &map) const;
+    void getDeployTimesFromMap(const QVariantMap &map);
+    void connectToDevice();
+    void setBaseState(BaseState newState);
+    void setDeviceConfig(MaemoDeviceConfig::Id internalId);
+
+    QSharedPointer<Utils::SshConnection> m_connection;
+    typedef QPair<MaemoDeployable, QString> DeployablePerHost;
+    QHash<DeployablePerHost, QDateTime> m_lastDeployed;
+    QSharedPointer<const MaemoDeviceConfig> m_deviceConfig;
+    QSharedPointer<const MaemoDeviceConfig> m_cachedDeviceConfig;
+    BaseState m_baseState;
+    bool m_hasError;
+};
+
+} // namespace Internal
+} // namespace Qt4ProjectManager
+
+#endif // ABSTRACTMAEMODEPLOYSTEP_H