Cleanup: e.g. removed commented out and otherwise disabled code.
--
user: Michael Guravage <michael.guravage@cwi.nl>
branch 'default'

changed src/OptionFileDialog.cpp
changed src/OptionFileDialog.h
changed src/UniqueMessage.cpp
changed src/VirtualLeaf.cpp
changed src/apoplastitem.cpp
changed src/apoplastitem.h
changed src/build_models/auxingrowthplugin.cpp
changed src/build_models/meinhardtplugin.cpp
changed src/build_models/testplugin.h
changed src/canvas.cpp
changed src/canvas.h
changed src/cell.cpp
changed src/cell.h
changed src/cellbase.cpp
changed src/cellbase.h
changed src/data_plot.cpp
changed src/data_plot.h
changed src/flux_function.h
changed src/forwardeuler.cpp
changed src/infobar.h
changed src/mainbase.cpp
changed src/mainbase.h
changed src/matrix.cpp
changed src/mesh.h
changed src/modelcatalogue.cpp
changed src/node.cpp
changed src/node.h
changed src/nodeitem.cpp
changed src/nodeset.h
changed src/output.cpp
changed src/output.h
changed src/parse.cpp
changed src/parse.h
changed src/random.cpp
changed src/random.h
changed src/sqr.h
changed src/vector.h
changed src/vleafmodel.h
changed src/wall.cpp
changed src/wallbase.cpp
changed src/wallbase.h
changed src/wallitem.cpp
changed src/wallitem.h
changed src/warning.cpp
changed src/warning.h
changed src/xmlwrite.cpp