* r-igraph: find old packages in the archive
Fixes#6104.
* r-irlba: find old packages in the archive
Fixes#6101.
* r-lazyeval: find old packages in the archive
Fixes#6102.
* packages: set list_url for all packages hosted on CRAN
* packages: consistently use the CRAN archive URLs
* Add mpi support to R
* Add multiple precision math routines to R
* Add packages for r-ergm and it's dependents
* Fixed depends-on types
* Correct flake8 errors