[Kst] [Kst-plot/kst] 95d301: improve settings debugging

[Peter Kümmel]

  Branch: refs/heads/master
  Home:   https://github.com/Kst-plot/kst
  Commit: 95d30183f6dcf6ccafdaa17bf9c69ada1c93901f
      https://github.com/Kst-plot/kst/commit/95d30183f6dcf6ccafdaa17bf9c69ada1c93901f
  Author: Peter Kümmel <syntheticpp at gmx.net>
  Date:   2013-12-01 (Sun, 01 Dec 2013)

  Changed paths:
    M .gitignore
    M src/libkst/datasourcepluginmanager.cpp
    M src/libkst/datasourcepluginmanager.h
    A src/libkst/settings.cpp
    A src/libkst/settings.h
    M src/libkstapp/application.cpp
    M src/libkstapp/applicationsettings.cpp
    M src/libkstapp/applicationsettings.h
    M src/libkstapp/arrowitem.cpp
    M src/libkstapp/arrowitemdialog.cpp
    M src/libkstapp/changedatasampledialog.cpp
    M src/libkstapp/changefiledialog.cpp
    M src/libkstapp/commandlineparser.cpp
    M src/libkstapp/datawizard.cpp
    M src/libkstapp/exportgraphicsdialog.cpp
    M src/libkstapp/exportvectorsdialog.cpp
    M src/libkstapp/histogramdialog.cpp
    M src/libkstapp/labelcreator.cpp
    M src/libkstapp/labelitem.cpp
    M src/libkstapp/labelitemdialog.cpp
    M src/libkstapp/legenditem.cpp
    M src/libkstapp/logdialog.cpp
    M src/libkstapp/mainwindow.cpp
    M src/libkstapp/mainwindow.h
    M src/libkstapp/matrixdialog.cpp
    M src/libkstapp/pictureitem.cpp
    M src/libkstapp/plotaxis.cpp
    M src/libkstapp/plotitem.cpp
    M src/libkstapp/scalardialog.cpp
    M src/libkstapp/stringdialog.cpp
    M src/libkstapp/svgitem.cpp
    M src/libkstapp/themedialog.cpp
    M src/libkstapp/vectordialog.cpp
    M src/libkstapp/view.cpp
    M src/libkstmath/dataobject.cpp
    M src/libkstmath/dataobject.h
    M src/widgets/curveappearance.cpp
    M src/widgets/datarange.cpp
    M src/widgets/dialogdefaults.cpp
    M src/widgets/dialogdefaults.h
    M src/widgets/fftoptions.cpp
    M src/widgets/vectorselector.cpp

  Log Message:
  -----------
  improve settings debugging

Make the settings variables a reference so ownership is more obvious.
This harmless change is responsible for the most changes.