Added some emoticons and a 1-line change

I added three new emoticons - :disapproval:, :frown:, and :wink : (extra space added because github wants to render that as an emote :P)
Also, updated the version variable in bytemail.py

I'm just going to auto-merge this, I only created a pull request because that's what I'm used to :P
This changes nothing in ByteMail's protocol and I think it is a simple enough change to be merged without the need for review.