hadley/testthat — pull request #84 by cboettig (2013-07-10 01:38:12+00:00)
Title: Include a CITATION file with the citation to the corresponding publication in the R journal 

Adds a CITATION file such that citation("testthat") tells the user about the R Journal paper associated with th package, http://vita.had.co.nz/papers/testthat.html