Add an option to avoid continually reparsing

[memeplex]

js2 provides an idle timer option that makes possible a more terse linting:

mooz/js2-mode#29

But ac-js2 plays bad with it as it's continually forcing a new reparse. Please add an option to supress this behavior, I don't care the AST to be a bit outdated but I do care about the distracting spurious messages the reparsing is triggering.

[ScottyB]

Is this what you were after 93e176b? Constant messages are a bit of a pain while trying to autocomplete. I supposed I could call js2-mode-reset-timer when ac-js2-force-reparse has been disabled to prolong the time until a message would show up.

[memeplex]

Yes, it was exactly that. Thank you!

[ScottyB]

No worries :)