Log Message:
mikutter: update to 3.6.6.

Upstream changes:

mikutter 3.6.6

* some README contents were obsolete
* tweets fetched via userstream were not in extended_mode
* account registration per tutorial stalled in some case
* gtk: window roll commands whose visible attribute was false was
  shown on the toolbar
* gtk2 3.2.4
* a command to switch to a specific account didn't work