Changed default reflen; more informative error message when GCD bin size too small or reflen too big
Changed default reflen; more informative error message when GCD bin size too small or reflen too big

mcshane/samtools,kdmurray91/samtools,Kontakter/samtools,mcshane/samtools,mcshane/samtools,dondelelcaro/samtools,mcshane/samtools,dondelelcaro/samtools,dondelelcaro/samtools,Kontakter/samtools,kdmurray91/samtools,Kontakter/samtools,Kontakter/samtools,mcshane/samtools,lh3/samtools-legacy,dondelelcaro/samtools,Kontakter/samtools,kdmurray91/samtools,lh3/samtools-legacy,lh3/samtools-legacy,kdmurray91/samtools,dondelelcaro/samtools,lh3/samtools-legacy,mcshane/samtools,kdmurray91/samtools,lh3/samtools-legacy