ver 3.0.11
* Support CSI 8 t and CSI 4 t sequence partially.
* Change the file to output messages by --logmsg option
  from ~/.mlterm/msg[pid].log to ~/.mlterm/msg.log.
* If ~/.config/mlterm exists, use it as a user config directory instead of ~/.mlterm.
* Support VtePty partially.
* Support mod_meta_mode option in win32.
* Support combination of Control+key in win32.
* Bug fixes:
  Fix a bug which erased border of candidate or status screen of uim or kbd.
  SF Bug #3464878 (Thanks to Daniel Lublin)