Modified BundleSettings. Updated xml read/write methods, changed default...

#include <QObject>

#include <QString>

#include <H5Cpp.h>

#include <hdf5_hl.h>

#include <hdf5.h>

#include "BundleObservationSolveSettings.h"

#include "MaximumLikelihoodWFunctions.h" // why not forward declare???

#include "PvlObject.h"

class QUuid;

class QXmlStreamWriter;

using namespace H5;

using namespace Isis;

namespace Isis {

  class FileName;

  class MaximumLikelihoodWFunctions;

   *   @history 2014-07-23 Jeannie Backer - Added QDataStream >> and << operators and read/write

   *                           methods. Created unitTest.

   *   @history 2014-07-25 Jeannie Backer - Improved unitTest coverage to 100% scope/line/function.

   *   @history 2014-11-17 Jeannie Backer - Added xml read/write capabilities. XmlHandler

   *                           constructor/destructor is not shown as covered by unitTest. Current

   *                           test code coverage is (scope 98.79%, line 98.698%, function 96.0%).

   *   @history 2015-02-20 Jeannie Backer - Changed apriori sigma defaults from -1.0 to Isis::Null.

   *                           Added hdf5 includes.

   *  

   *   @todo Determine whether xml stuff needs a Project pointer

   *   @todo Determine which XmlStackedHandlerReader constructor is preferred

   *  

   */

  class BundleSettings : public QObject {

    Q_OBJECT

    public:

      BundleSettings(QObject *parent = 0);

      BundleSettings(const BundleSettings &other);

      BundleSettings(const BundleSettings &src);

      BundleSettings(Project *project, 

                     XmlStackedHandlerReader *xmlReader, 

                     QObject *parent = 0);  // TODO: does xml stuff need project???

      // Solve Options

      /**

       * This enum defines the types of solve methods.

       * This enum defines the types of matrix decomposition methods for solving

       * the bundle. 

       */

      enum SolveMethod {

        Sparse,   //!< Cholesky model sparse normal equations matrix. (Uses the cholmod library).

      static QString solveMethodToString(SolveMethod solveMethod);

      // mutators

      void setSolveOptions(SolveMethod method, 

      void setSolveOptions(SolveMethod method = Sparse, 

                           bool solveObservationMode = false,

                           bool updateCubeLabel = false, 

                           bool errorPropagation = false,

      int numberSolveSettings() const;

      BundleObservationSolveSettings observationSolveSettings(QString instrumentId) const;

      BundleObservationSolveSettings observationSolveSettings(int n) const;

//      const BundleObservationSolveSettings &observationSolveSettings(QString instrumentId);

//      const BundleObservationSolveSettings &observationSolveSettings(int n);               

      // Convergence Criteria

      /**

      QDataStream &write(QDataStream &stream) const;

      QDataStream &read(QDataStream &stream);

      void savehdf5(hid_t fileId, H5::Group settingsGroup) const;

    private:

      /**