Live update user's post

[bago2k4]

Card: https://trello.com/c/ZXCx6M2G

Right now if a user's list of post is shown live updates are not handled. Messages from CS comes in but they are not accounted for this kind of stream.

NB: to avoid automatic posts refresh on focus open 2 different windows with 2 different sessions of Carrot: user A from org 1 and user B from org 2. Make them visible w/o switching window (to avoid auto-refresh when you focus on a window).

To test:

• user A
• user B
• user A opens B's list of posts
• user B creates a new draft in QP
• user A sees nothing different
• user B publishes the post
• user A sees the post appear
• user A opens the post
• user B sees viewers count increment
• user A goes back to AP
• user B updates the post title and/or body
• user A sees the post changing
• user B delete the post
• user A sees the post disappearing