v0.2.0

Many, many changes, of which the most important are:
New stages to add info to 3' ends about transposon annotation, continuous RNA-seq and region alignments.
Filter 3' end false positives based on polyA, primary and secondary hexamers and other annotation, like repeats, transposons, RNA-seq, etc...
Call multiple 3' end peaks in a single region.
Allow processing of large datasets.
Switch from Bio::DB::Sam to Bio::DB::HTS.
Run DESeq2 in parallel.
Ensure Ensembl database connections aren't lost.
Script to convert DETCT output to BioLayout Express3D format.