Release 0.2.3

• Add better descriptions to slider labels by @ssmaity in #11
• Simplify apex_radius implementation by @asahade in #14
• Fix incorrect type for slider values (fixes #16)
• Pin sunpy dependency to <5.2.0 (see #17)

Release 0.2.2

Falls back to https://helioviewer.ias.u-psud.fr/ if https://helioviewer.org is unreachable.

Release 0.2.1

upgraded SunPy to 1.2.0, removed workaround which is now included in SunPy (sunpy/sunpy#4561)

Version 0.2.0

Switch back to official helioviewer site
implement different display modes
modify directory structure
add setup.py

Version 0.1.0

First official release.