SZARP Encoding conversions revolution

* libSzarp/conversion.cc
This is a huge change:

 - libSzarp will now detect system encoding from locale, it defaults to
   UTF-8. If system has non-UTF8 encoding, program assumes it is
   ISO8859-2 (Linux) or CP1250 (Win).

 - functions for conversions between encodings changes:
     (mod) A2S converts ASCII -> SZARP (not LOCAL -> SZARP)
     (mod) S2A converts SZARP -> ASCII with transliteration (not SZARP -> LOCAL)
     (mod) A2U converts ASCII -> UTF-8 (not LOCAL -> UTF-8)
     (mod) U2A converts UTF-8 -> ASCII with transliteration (not UTF-8 -> LOCAL)
     (new) L2S converts LOCAL -> SZARP
     (new) S2L converts SZARP -> LOCAL
     (new) L2U converts LOCAL -> UTF-8
     (new) U2L converts UTF-8 -> LOCAL

WARNING! It may affect almost every part of Szarp, it must be carefully
tested. These functions are used more than 400 times.

* wx/common/parlist.cpp
SZARP Parameter Lists (.xpl) should be saved in UTF-8, rather than
ISO8859-2 encoding.

* debian/control
* configure.ac
* iks/server/Makefile.am
* isl/paramd/Makefile.am
* meaner3/Makefile.am
* parcook/Makefile.am
* parcook/analiza/Makefile.am
* sender/Makefile.am
* utils/Makefile.am
* wx/confedit/Makefile.am
* wx/draw3/Makefile.am
* wx/ekstraktor3/Makefile.am
* wx/isledit/Makefile.am
* wx/kontroler3/Makefile.am
* wx/koper/Makefile.am
* wx/raporter3/Makefile.am
* wx/scc/Makefile.am
* wx/sync/Makefile.am
* wx/szast/Makefile.am
* wx/wxhelp/Makefile.am
Added dependency for libboost-locale library (used by libSzarp).