Fix variable assignment.

Closes #35

See merge request BICF/Astrocyte/chipseq_analysis!29

Move single-end to run on astrocyte.

Closes #35

See merge request BICF/Astrocyte/chipseq_analysis!28

Resolve "Add multiqc summary of data"

Closes #19

See merge request BICF/Astrocyte/chipseq_analysis!26

Resolve "Test Astrocyte"

Closes #24

See merge request BICF/Astrocyte/chipseq_analysis!25

Update tests and import of yaml.

Closes #34

See merge request !24

Resolve "Output software versions and methods and references"

Closes #21

See merge request BICF/Astrocyte/chipseq_analysis!23