Merge branch 'master' of https://github.com/molgenis/systemsgenetics
added iterator to TextFile reader.
Reduce memory usage of trityper loader
minor stuff genotype reader
Update README.md
Made scripts executable in assemblies
Merge branch 'master' of https://github.com/PatrickDeelen/systemsgenetics
Merge pull request #122 from PatrickDeelen/master

Reduce memory usage of trityper loader and added iterator to TextFile reader