explain pi0 estimation in manual for tutorial + add input checks in R functions
rename --type into --analsys in eqtlbma_bf + create data_loader
continue moving functions from eqtlbma_bf to data_loader
finish moving loading functions from eqtlbma_bf to data_loader
fix --rare 0 as default in tutorial
skip SNPs with NA in custom format
finish replacing --type by --analys in manual and bash script
minor improvements of R scripts (tuto + utils)
fix gene and snp names in tuto
add quick comparisons of perm p-values with EBF/QBF
add --nchrs to tutorial
minor improvements in test scripts
add item in TODO + add 'rc' to version (for release candidate)