Intercept clicks @ top level so markdown links and other links not using React Router don't force reload

[KyleAMathews]

This module would make this a very easy PR https://github.com/substack/catch-links

[thangngoc89]

Wow. Never heard of this. Statinamic has this issue too MoOx/phenomic#67

[fson]

If implemented, maybe this should be configurable? I'm currently (ab)using this to force a page reload for some pages by using <a> instead of <Link>.

[KyleAMathews]

@fson noted :D that's a pretty valid reason.

So a thought. With #100, reloading a Gatsby site should be near instantaneous making page reloads this link catcher is intended to catch matter a lot less. I vote we wait and see how Service Workers change the experience.

Thoughts?

[KyleAMathews]

Gonna close this because there's valid reasons for not intercepting clicks, service workers will solve reload latency problem, and it's easy enough to add this to individual site projects if someone wants it (and could be abstracted into an NPM module too which would be cool).