Update for sbt-web

[diwa-zz]

@jamesward , @huntc - This will be the perfect companion for the sbt-web story.

Ideally, it could just support livereload, like https://github.com/guard/guard-livereload

[huntc]

@jamesward what'd think? Should it be part of sbt-web as @diwa suggests? Do you find yourself using all of the time...?

[jamesward]

This really needs to be re-written on top of the sbt server.

[huntc]

Cool. @diwa. Do you want to raise this issue on sbt?

[mariussoutier]

Would you accept a PR to transform this into an auto-plugin depending on sbt-web in the meantime?

[jamesward]

Of course!