typo
license update
refactored existing code to use shared module
common chess module for fen and pgn
.merlin
.gitignore
starter for FEN
sample files for tests
fen module
formatting and merlin update
oasis update
initial fen
mli fen updates
castling handling + random refactorings
fixed tests after refactorings
updated .gitigonore
added sexplib
simplified module signature for fen
implemented most of fen parsing
own piece module