All charset.conf files were extended to supply unicode mapping array
CONVERT() now uses more common order of arguments: CONVERT(expr,charset_from,charset_to)
Dynamic charset can be used as CONVERT() argument


mysys/charset.c:
  Added filling of unicode mapping arrays during charset.conf loading
sql/share/charsets/armscii8.conf:
  Added filling of unicode mapping arrays during charset.conf loading
sql/share/charsets/cp1251.conf:
  Added filling of unicode mapping arrays during charset.conf loading
sql/share/charsets/cp1257.conf:
  Added filling of unicode mapping arrays during charset.conf loading
sql/share/charsets/croat.conf:
  Added filling of unicode mapping arrays during charset.conf loading
sql/share/charsets/danish.conf:
  Added filling of unicode mapping arrays during charset.conf loading
sql/share/charsets/dec8.conf:
  Added filling of unicode mapping arrays during charset.conf loading
sql/share/charsets/dos.conf:
  Added filling of unicode mapping arrays during charset.conf loading
sql/share/charsets/estonia.conf:
  Added filling of unicode mapping arrays during charset.conf loading
sql/share/charsets/german1.conf:
  Added filling of unicode mapping arrays during charset.conf loading
sql/share/charsets/greek.conf:
  Added filling of unicode mapping arrays during charset.conf loading
sql/share/charsets/hebrew.conf:
  Added filling of unicode mapping arrays during charset.conf loading
sql/share/charsets/hp8.conf:
  Added filling of unicode mapping arrays during charset.conf loading
sql/share/charsets/hungarian.conf:
  Added filling of unicode mapping arrays during charset.conf loading
sql/share/charsets/koi8_ru.conf:
  Added filling of unicode mapping arrays during charset.conf loading
sql/share/charsets/koi8_ukr.conf:
  Added filling of unicode mapping arrays during charset.conf loading
sql/share/charsets/latin1.conf:
  Added filling of unicode mapping arrays during charset.conf loading
sql/share/charsets/latin2.conf:
  Added filling of unicode mapping arrays during charset.conf loading
sql/share/charsets/latin5.conf:
  Added filling of unicode mapping arrays during charset.conf loading
sql/share/charsets/swe7.conf:
  Added filling of unicode mapping arrays during charset.conf loading
sql/share/charsets/usa7.conf:
  Added filling of unicode mapping arrays during charset.conf loading
sql/share/charsets/win1250.conf:
  Added filling of unicode mapping arrays during charset.conf loading
sql/share/charsets/win1251.conf:
  Added filling of unicode mapping arrays during charset.conf loading
sql/share/charsets/win1251ukr.conf:
  Added filling of unicode mapping arrays during charset.conf loading
sql/sql_yacc.yy:
  Changed the order of arguments to Convert(expr,charset_from,charset_to)
  Dynamic charsets are now resolved too for Convert() arguments