Fix the following problems when dealing with inputing Japanese characters.
- a)
- The File Modified flag was not set when inputing Japanese
characters.
- b)
- After switching to a single-byte font, tgif was still talking
to the input method.
- c)
- If Tgif.PreeditType is set to overthespot, the kinput2's window
position was wrong.
Thanks to TAKAHASHI Hitoshi <thitoshi@ne.scphys.kyoto-u.ac.jp>
pointing out the problems.