Fixes issue #2377 by removing the ability to escape backticks in backticks in compliance with asciidoc's behaviour. Adjusted hooks.asciidoc, keys.asciidoc, and command-parsing.asciidoc to match accordingly.
- some wording changes in included documentation
- find supports multiple starting paths, we don't need to launch it 3 times
- Change the regex that trims the file extension to only trim the last extension
Some additional things I noticed:
- find should use -L to see through symlinks like the autoload processing does.
- find should check the user's autoload directory first, so users can override
Kakoune's built-in documentation.
This makes the somewhat-dubious assumption that every plugin will have uniquely-
named documentation files, instead of automatically putting every plugin's docs
into a namespace. However, plugins already have to deal with flat namespaces for
commands, options, filetypes, etc. so one more shouldn't hurt.
Fixes#2466.
Similarly to the <semicolon> key, make it easier to write
`:execute-keys` commands by replacing <percent> with `%`.
Highlighters can keep escaping the sign when regular expressions are
not quoted, but built-in scripts that use `%` as an editing primitive
have been modified to use the named key, for clarity.
