v4.4.0

Highlights

• Add Ag3.aim_variants() function
  (GH233).
• Enable plotting high coverage variance samples with
  Ag3.plot_cnv_hmm_coverage()
  (GH240).

What's Changed

• Fix Ag3.plot_cnv_hmm_coverage() by @alimanfoo in #241
• Implements ag3.aim_sites() by @cclarkson in #234
• v4.4.0 prep by @alimanfoo in #242

Full Changelog: v4.3.1...v4.4.0