craigcitro/r-travis — pull request #32 by krlmlr (2013-10-27 20:17:38+00:00)
Title: set CRAN URL via environment variable RTRAVIS_CRAN_URL, default http://cran.rstudio.com

An "options" call is appended to `Rprofile.site` during bootstrapping

I can change this to an argument for `bootstrap` instead of an environment variable.

Fixes #6.