Input toolbar 'follows' keyboard even when it is not first responder

[toblerpwn]

Steps to reproduce:

1. Create JSQMessagesViewController object
2. Show keyboard from OTHER responder, e.g. a separate UITextField to edit your username or something
3. Keyboard appears - and the JSQMessagesInputToolbar object follows it on-screen - but it shouldn't, since you are not 'chatting' (and in fact may not even be displaying the Messages UI)

Ideally, JSQMessagesInputToolbar would only respond to keyboard frame changes while it is the first responder - else it should ignore them (optionally?).

Environment: iOS 8, JSQMessages 6.1, all devices

[jessesquires]

thanks @toblerpwn !