2012/11/06 add functions qtl2rel and rel2qtl for converting data between
   QTLRel and R/qtl formats. These two functions are provided by Karl Broman,
   author of R/qtl.

2012/10/31 copy 'ks.c' from 'stats' in R-2.15.1 to avoid a harsh warning
   in R CMD CHECK when functions pkolmogorov2x and psmirnov2x are called
   from 'stat' by '.C'; filled in a missing sex value in pedF8 in the miscEx
   example data.

2012/07/24 fix a bug in fitting interactive covariates in the case of additive
   allelic effects, plus some other minor changes.

2011/09/30 allow user to interrupt of 'cic' in addition to other conveniences.

2011/07/21 scanOne is extended to multiple-allelic additive models.

2011/07/10 add a tutorial in doc and more comments in examples.

2011/06/27 remove error messages on certain platforms; add function 'ibs'.

2011/05/18 add to genMatrix: estimate genetic matrices from genotypic data;
   add to scanOne and scanTwo: allow numerical genotype coding.

2011/04/19 add function 'gls'.

2011/04/14 add function 'scanTwo'.

2011/03/22 resolve the problem of 'long long' type on some platforms.

2011/03/16 resolve the problem of fopen64 and fseeko64 to enable installation
   on macosx and solaris systems.

2011/03/10 replace scanOne with scanOne4p; add functions to calculate identity
   coefficients from pedigrees; add a function to create matrices that are
   associated with non-genetic random effects.

2010/11/10 remove "R (>= 2.9.0)".