Feature/tree-sitter merged into master

[Yuan Fu]

Hey guys,

This announcement might be a bit late… I thought Eli is going to make the 
announcement. But for those who are unaware, feature/tree-sitter is now merged 
into master!

I’ve already seen many bug reports turning up and I’ll try to fix them promptly 
:-) Many people have already started to fix those problems, making me feeling a 
little bit of shame and a lot of joy :-)

Thank you so much!
Yuan