Bug 400296 -
org.eclipse.nebula.widgets.formattedtext.FormattedTextObservableValue
should implement org.eclipse.jface.databinding.swt.ISWTObservable

This enhancement ensures that the ControlDecorationSupport can also be
applied to the FormattedText Widget

Change-Id: I2d97c1d1e01f7b3c90a4c3b3cd925713ef610764
Signed-off-by: Simon Scholz <simon.scholz@vogella.com>
Merge "Bug 400296 - org.eclipse.nebula.widgets.formattedtext.FormattedTextObservableValue should implement org.eclipse.jface.databinding.swt.ISWTObservable"