Ensime just went missing from everywhere.
On [[ensime.github.io]], they encourage to switch to metals -
a new Scala language server already supported by lsp-mode.
This commit:
- removes ensime completely
- adds a doctor.el to check for metals-emacs binary
Original issue: 6288099561
Metals: https://scalameta.org/metals/docs/editors/emacs.html
Still needs to be documented, but includes support for the following
languages:
+ C/C++/ObjC
+ Go
+ Java
+ Javascript
+ OCaml
+ PHP
+ Python
+ Ruby
+ Scala
+ Swift
+ HTML/CSS
Relevant to #460, #716, #1186
