pkgdown documentation

[krlmlr]

The pkgdown package (ex staticdocs) is gaining traction, I have created a rendering of the current version of the documentation at http://richfitz.github.io/remake/. (Tried to add it to my fork, didn't work.) It would be easy to add the stuff in the doc directory there, too.

I have a script that will push to gh-pages on every commit, which I could add here. You'd need to install the travis package via devtools::install_github("krlmlr/travis@develop") and run travis::use_travis_deploy(tasks = list("travis::task_install_ssh_keys()")) to install Travis infrastructure, I can take care of the rest.

If you don't like it, I'll simply remove the gh-pages branch.