Log message

Test return of building cluster models, and don't enable evaluate on failure.
Display Console timestamps - startup and console errors.
GTK bug on MS Windows - ensure textviews have busy cursor when models are
building.
Add Plots button to Survival model for coxph.
Ensure TIN derived var names are proper var names for R with make.names
unifyTransforms - handle TIN and TNM - orig vars are factors.
Add toga function to browse to the ratle home page.
Fix some logic around what evaluate Types are active.

	Modify	/trunk/changes.html.in	diff
	Modify	/trunk/package/pmml/DESCRIPTION	diff
	Modify	/trunk/package/rattle/NAMESPACE	diff
	Modify	/trunk/src/cluster.R	diff
	Modify	/trunk/src/evaluate.R	diff
	Modify	/trunk/src/execute.R	diff
	Modify	/trunk/src/hclust.R	diff
	Modify	/trunk/src/kmeans.R	diff
	Modify	/trunk/src/model.R	diff
	Modify	/trunk/src/pmml.R	diff
	Modify	/trunk/src/rattle.R	diff
	Modify	/trunk/src/rattle.glade	diff
	Modify	/trunk/src/rpart.R	diff
	Modify	/trunk/src/survival.R	diff
	Modify	/trunk/src/textview.R	diff
	Modify	/trunk/src/transform.R	diff
	Modify	/trunk/todo.html.in	diff