#4607 No conflicts with nvim-lspconfig by default

Default `g:ale_disable_lsp` to a new mode `'auto'` by default. With this
setting applied, ALE will now check for the presence of nvim-lspconfig
and automatically turn off particular LSP linters if already configured
via nvim-lspconfig.

For users that do not use `nvim-lspconfig`, everything should work as
before.

ale_linters/ocaml/ols.vim

@@ -6,6 +6,7 @@ call ale#Set('ocaml_ols_use_global', get(g:, 'ale_use_global_executables', 0))
 
 call ale#linter#Define('ocaml', {
 \   'name': 'ols',
+\   'aliases': ['ocaml-language-server'],
 \   'lsp': 'stdio',
 \   'executable': function('ale#handlers#ols#GetExecutable'),
 \   'command': function('ale#handlers#ols#GetCommand'),