start adding  friend chat
Merge branch 'sora' of https://github.com/ruinakata/sora into sora
start 1 to 1 chat
Merge branch 'sora' of https://github.com/ruinakata/sora into sora
add multiple chat threads
continuing chat'
add chat first version
Merge branch 'sora' of https://github.com/ruinakata/sora into sora