Apply some small tweaks to Rivets.Binding::unbind.
Apply some small tweaks to Rivets.Binding::unbind.

kangax/rivets,benderTheCrime/tiny-rivets,mikeric/rivets,jccazeaux/rivets,QAPInt/rivets,QAPInt/rivets,MishaMykhalyuk/rivets,moneyadviceservice/rivets,MishaMykhalyuk/rivets,mikeric/rivets,altmind/rivets,zongkelong/rivets,altmind/rivets,nopnop/rivets,zongkelong/rivets,jccazeaux/rivets,GerHobbelt/rivets,mikeric/rivets,MishaMykhalyuk/rivets,GerHobbelt/rivets,re-clone/rivets,npmcomponent/mikeric-rivets,zongkelong/rivets,GerHobbelt/rivets,altmind/rivets,re-clone/rivets,nopnop/rivets,QAPInt/rivets,nopnop/rivets,re-clone/rivets,jccazeaux/rivets