Add support for Turbolinks

[dsnider]

Rationale - near SPA performance with relatively little effort.

Others that agree:

• https://changelog.com/posts/why-we-chose-turbolinks
• https://robots.thoughtbot.com/how-we-replaced-react-with-phoenix
• https://elixirforum.com/t/thoughts-about-single-page-applications/865/19

See how fast Changelog is with Turbolinks: https://changelog.com

Turbolinks for Phoenix libs:

• https://github.com/gauravtiwari/phoenix_turbolinks
• https://github.com/Troush/turbolinks_phoenix
• https://github.com/kagux/turbolinks_plug

Related - worth looking at/considering:

Drab:

• https://tg.pl/drab

Unpoly:

• http://unpoly.com/
• http://triskweline.de/unpoly-rugb/#/
• https://elixirforum.com/t/unpoly-a-framework-like-turbolinks/3614

Morphdom:

• https://github.com/patrick-steele-idem/morphdom

[tmbb]

While turbinks seems to bring performance for free, reading their issues log is a little scary. It seems that tutbolinks is messing with THINGS THAT WEBDEV MUST NOT MESS WITH.

On the other hand, as long as it is used in admin pages obly I don't think it's very dangerous. After all, there won't be that much javascript around in what's supposed to be mostly CRUD forms.

It's after all as simple as including a script and call a single function, so it's easy to make opt-out.

[tmbb]

On further thought: @smpallen99 said talon was meant to be used for general UI development. In they case (turbinks used in a less controlled environment, possibly more complex than an admin interface), I'm very afraid of using turbolinks. Please make it very easy to opt out.

[smpallen99]

Turbo links will be opt in.

[hwinkel]

what about http://unpoly.com may combined with drab seen as options in the forum https://elixirforum.com/t/front-end-development-options-2017/3832/22