konwert - 1.8-13.1 main

`konwert' is yet another charset converter. Some particular features are:
* one-to-many conversions
* context-dependent conversions
* approximations of some unavailable characters
* (as a result) ability to transcript e.g. Russian Cyrillic into Polish
phonetic equivalent
.
`filterm' applies filter conversion to a terminal's I/O, to get on-the-fly
charset conversion, and customized input methods.