Languageclient-neovim: Gracefully handle selective load of LanguageClient

[mqudsi]

The rplugin for LanguageClient presumes that the LanguageClient plugin will always be loaded. It is oftentimes advantageous to use a vim plugin manager that offers selective loading of plugins (like dein) and configuring it to load plugins only when they are needed.

I have LanguageClient set to only load for certain file types, but since the rplugin is always loaded, I am getting some errors if I start neovim without LanguageClient. In particular, I see the following under neovim 0.2.3 builds:

no notification handler registered for "/home/mqudsi/.config/nvim/dein/repos/github.com/autozimu/LanguageClient-neovim/rplugin/python3/LanguageClient:autocmd:BufReadPost:*" 
Press ENTER or type command to continue
no notification handler registered for "/home/mqudsi/.config/nvim/dein/repos/github.com/autozimu/LanguageClient-neovim/rplugin/python3/LanguageClient:autocmd:CursorMoved:*" 
Press ENTER or type command to continue

If reproduction steps are required, I can provide that. However, I am presuming that this is by design and that the LanguageClient rplugin assumes the LanguageClient vim plugin will always be loaded, leading to this error. I did not previously see these errors, so I'm presuming it's a recent update.

[DerWeh]

It is oftentimes advantageous to use a vim plugin manager that offers selective loading of plugins (like dein) and configuring it to load plugins only when they are needed.

Why is that the case for LanguageClient. As fare as I know, it is only important for badly written plug-ins which don't use autoload.
Using Startuptime says that the LanguageClient needs 0.010 ms to start. So what is the advantage of lazy loading it?

[autozimu]

Branch next should already support this feature.

[mqudsi]

Thank you.