Known bugs of miniChinput:

1. Crash when switch back to ZNPY. (fixed)
2. ROOT mode may "eat" some words if total selection buffer is too long.
       maybe other mode has the same problem. (fixed? need more test)
3. "pp"-bug of ZNPY. (fixed)
4. Caret mode does not work well for GTK applications:
       RH7.1, GTK is fine, but Konsole is not;
       RH8 and up, GTK is not.
       Need more tests.
