Log Message:
mikutter: update to 3.8.7.

Upstream changelog:

mikutter 3.8.7

* a dead link in a message when Twitter authentication failed
* check quoted_status_permalink for quoted RT on Filterstream
 * thanks Izumi Tsutsui
* [twitter] deal with the promised day
* Gtk2 3.3.2
 * thanks Akira Ouchi
* [libnotify] notification was not shown when Diva::Model is received