Chat list: most recently used conversations

[stsievert]

With many chats, you see the most recently used chats are at the top of the list. For example, the my most recently used conversation that I see on the "choose a conversation" screen is about 2 months old.

[chrisfsampaio]

Hey @scottsievert, #18 has just covered this issue! 😄
I've released a new gem version (0.0.4) with the updates!

Thanks for your suggestion! 👍