Release 0.2.0

What's Changed

• [ENH] Remove use of pkg_resources by @ales-erjavec in #289
• [ENH] Drop Handler: Add a title to popup for widget selection by @janezd in #290
• [FIX] Reconfigure stylesheet on application palette change by @ales-erjavec in #291

Full Changelog: 0.1.35...0.2.0