Merge pull request #225 from Bonder-MJ/master

Fix in reading gen sequence names and addition of nb8 config file
Warning for long runtime of QQ plot creation
MAF calculator better error handling and return maf 0 is call rate is 0
First check call rate then check maf
Merge pull request #226 from PatrickDeelen/betterLoadingGenotypeIO

minor stuff
Merge branch 'master' of https://github.com/molgenis/systemsgenetics
Addition of date in ussed settings