misc: added StaticIntSlider class.
variationeditor: fixed an issue in editVariations.
misc: added IntLineEdit class.
gui: simplified the node menu.
core: removed the old graph model.
gui: removed the variation editor
gui: removed the variation editor
nodepanel: added support for the new node classes.
gui/misc: removed step lines.
gui: using the new C++11 enum.
updated SConstruct.
gui: fixed scene size issue in GraphicsView.
gui: fixed colour and selection issues.
gui: fixed selection colour issues.
gui: added zoom, center, and fit commands.
gui: new node architecture without the use of Boost.graph
gui: increased slot region.
nodepanel: added a simple Lua syntax highlighting.
core: added node deletion and support for the new node architecture.
misc: align right.