Make value getters/setters more consistent

See #6

labelcheckbox.go

@@ -31,6 +31,11 @@ func NewLabelCheckbox (value bool, text string) *LabelCheckbox {
 	return box
 }
 
+// Value returns the value of the checkbox.
+func (this *LabelCheckbox) Value () bool {
+	return this.checkbox.Value()
+}
+
 // SetValue sets the value of the checkbox.
 func (this *LabelCheckbox) SetValue (value bool) {
 	this.checkbox.SetValue(value)
@@ -41,13 +46,8 @@ func (this *LabelCheckbox) Toggle () {
 	this.checkbox.Toggle()
 }
 
-// Value returns the value of the checkbox.
-func (this *LabelCheckbox) Value () bool {
-	return this.checkbox.Value()
-}
-
-// OnValueChange specifies a function to be called when the checkbox's value
-// changes.
+// OnValueChange specifies a function to be called when the user checks or
+// unchecks the checkbox.
 func (this *LabelCheckbox) OnValueChange (callback func ()) event.Cookie {
 	return this.checkbox.OnValueChange(callback)
 }