Add missing setBackground methods to current adempiere comp

Link to SF Tracker: http://sourceforge.net/support/tracker.php?aid=3017921

base/src/org/compiere/swing/CField.java

@@ -325,4 +325,10 @@ public class CField extends JComboBox
 		m_oldValue = newValue;
 	}   //     //  actionPerformed
 	
+	@Override
+	public void setBackground(Color bg)
+	{
+		m_editor.setBackground(bg);
+	}
+
 }   //  CField

client/src/org/compiere/grid/ed/VDate.java

@@ -626,4 +626,10 @@ public class VDate extends JComponent
 		}
 	}	//	fireActionPerformed
 	/**/
+	
+	@Override
+	public void setBackground(Color bg)
+	{
+		m_text.setBackground(bg);
+	}
 }	//	VDate