Sync with upstream [24.08.2021]#10

Merged

rkk-ableton merged 10 commits intoableton-masterfrom

Aug 24, 2021

Commits on Jun 21, 2019

Fix compilation with Boost 1.70.0
K. Mlynarczyk
committed

Commits on Jun 28, 2019

Add tests to demonstrate bug caused by json_spirit.
src
committed

Commits on Jul 1, 2019

Commits on Jul 2, 2019

Recalculate position so it is based on the index of unicode codepoints.
src
committed

Commits on Jun 7, 2021

See if this fixes the travis build
mattwynne
authored

Commits on Jul 3, 2021

Merge pull request #225 from homespring/fix-boost-1.70.0-build
jermus67
authored

Commits on Aug 4, 2021

Commits on Aug 24, 2021

Merge remote-tracking branch 'upstream/main' into sync-upstream
Spencer Rudnick
committed