v2.1.0

Updated the default genome TSV file (v3 to v4) in test example input JSON.

• https://storage.googleapis.com/encode-pipeline-test-samples/encode-atac-seq-pipeline/ENCSR356KRQ_subsampled.json

The only difference between two genome TSV versions (v3 and v4) is in a reference TSS bed file.
Such TSS file's genome coordinate is shifted by 1 to be based on a zero-based index (the old TSS file was wrongly based on a one-based index).

Therefore, using a v4 genome TSV will slightly affect the output of the tss_enrich analysis.