Added a catch to check the number of columns in the .snp file. Evoker will accept .snp files with 1, 3 and 5 columns, and for 1 and 3 column files a warning is printed in the Evoker log.
Added a catch to check the number of columns in the .snp file. Evoker will accept .snp files with 1, 3 and 5 columns, and for 1 and 3 column files a warning is printed in the Evoker log.

wtsi-medical-genomics/evoker,wtsi-medical-genomics/evoker,wtsi-medical-genomics/evoker