1) KPK bitbases are now internal to the program, not stored in files.
2) Minor change to checks in qsearch conditions.
3) Fix bug in see pruning affecting stalemate detection.
4) Fix bug where UCI PV output was omitted in case search terminated
very rapidly (for example, in cases of a forced mate).
5) Handle DOS-style CR/LF from chess interfaces such as SCID.
6) Some book additions/fixes.