Bugs
====

o Some symbols aren't being converted (look at Informan 49, Pigusov-Georgiev.
  Move 35.Ra1 should have the comment "{(+)}", for "time", but it has
  "{   }".

o "wsq" and "bsq" processing in CBKEY looks suspect.

Todo
====

o Need to conform more fully with PGN specification in CBASCII:
  i)	section 8.1, import format for tag-pairs (maybe?).

o Finish pawn test functions in CBKEY.

o Add functionality to CBCHECK to check for header errors and annotation
  formatting errors.  Also try fixing broken data ???

