* references: add ALEFindReferences -fzf option
Allows using -fzf to show previews using fzf.vim. Includes:
- add support for opening in bufers, splits, tabs and for adding matches quickfix
- add support for -relative
- add fzf preview `--highlight-line` option
- add fzf.vim autoload module
* tests: fix references tests for fzf support update
Change logic so ALE's LSP implementation and the Neovim LSP client
retrieve the language_id for language clients at roughly the same time
via the same means. This makes ALE inform the language server what the
language for the language is for clients.
This patch adds support for opening jdt:// links on "go to definition" requests returned by Java language servers.
Co-authored-by: w0rp <devw0rp@gmail.com>
* Allows to use quickfix for references.
E.g. following mapping could be used to find references for item under
cursor and put result into quickfix list:
```
nnoremap <leader>af :ALEFindReferences -quickfix<CR>
```
Fixes#1759
* Documentation update.
Default navigation for commands that jump to new locations has been
implemented with the `ale_default_navigation` variable, and all commands
that jump to locations now support `-tab`, `-split`, or `-vsplit`
arguments for overriding the default navigation behavior.
