#' @section Repo folder structure:
#'
#'   A repository has two main folders, one for source packages, and the other
#'   for binary packages.  Inside the binary package folder, `bin`, you will find
#'   subfolders for Windows as well as the various OSX binaries.
#'
#'
#'   `+- Root`
#'
#'   `...+- src/contrib`
#'
#'   `......+- PACKAGES`
#'
#'   `..+- bin`
#'
#'   `.......+- windows/contrib/version`
#'
#'   `..........+- PACKAGES`
#'
#'   `.......+-  macosx/contrib/version`
#'
#'   `..........+-  PACKAGES`
#'
#'   `.......+-  macosx/mavericks/contrib/version`
#'
#'   `..........+-  PACKAGES`
#'
#'   `.......+-  macosx/leopard/contrib/version`
#'
#'   `..........+- PACKAGES`
#'
#'   
