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/qmlprojectmanager/qmlprojecttarget.cpp

@@ -72,11 +72,6 @@ ProjectExplorer::IBuildConfigurationFactory *QmlProjectTarget::buildConfiguratio
     return 0;
 }
 
-ProjectExplorer::DeployConfigurationFactory *QmlProjectTarget::deployConfigurationFactory() const
-{
-    return 0;
-}
-
 bool QmlProjectTarget::fromMap(const QVariantMap &map)
 {
     if (!Target::fromMap(map))

src/plugins/qmlprojectmanager/qmlprojecttarget.h

@@ -61,7 +61,6 @@ public:
     QmlProject *qmlProject() const;
 
     ProjectExplorer::IBuildConfigurationFactory *buildConfigurationFactory() const;
-    ProjectExplorer::DeployConfigurationFactory *deployConfigurationFactory() const;
 
 protected:
     bool fromMap(const QVariantMap &map);