Differentiate between regular autosave delay and submit autosave delay

[Situphen]

Differentiate between :

• the "regular" autosave delay (saving the content every x seconds) with options.autosave.delay
• the "submit" autosave delay (saving the content if we think the submit as failed) with options.autosave.submit_delay

I'm working for a project (https://github.com/zestedesavoir/zds-site) where we put the options.autosave.delay at 1 second because we want to save the content each 1 second. But since the submit request takes more than 1 second EasyMDE thinks the submit as failed so it saves the content in the localStorage.

I didn't find a better name than autosave.submit_delay, any suggestion is welcome.

This might be considered as a breaking change. If it is the case, we could maybe use easyMDE.options.autosave.submit_delay || easyMDE.options.autosave.delay || 10000 ?

[Ionaru]

Nice suggestion 👍

One thing is that I would like to use the non-breaking option.