unigd 0.1.2

Fixed an issue that made unigd crash when rendering without any plots in the history on some platforms.
Update installation instructions (thanks @huangyxi).
Minor internal improvements.

unigd 0.1.1

Fix issues with 'libtiff'. (Thanks @benz0li)
Update linking on Windows for upcoming version of 'Rtools'. (Thanks @kalibera)

unigd 0.1.0

Split graphics rendering and R interface from 'httpgd'.
Large refactoring and rewrite.
Add async C client API.
Add custom inter process communication layer.
Add TIFF renderer.
Add Base64 PNG renderer.
Fix crash when querying capabilities on R 4.2.
Improve testing.
Many small fixes and improvements.