Update mikutter to 0.0.3.12.

Changes:
added
* none
fixed
* On icons of voter, screen_name is not shown in tip help. And user profile is
  not shown on click.
* Wheel scroll does not work on follow/follower list.
* at fire /statuses/update, with include_entities=1, so that own tweet with
  entity.
* correct index with counting escaped string in an appropriate manner (wip)
* crash when retweet at the tweet is removed from TL.

(obache)