Test against new 5.3 and 5.4 ports in D13690 and D14609.
2018-07-23:
- As per note in summary, make needs to be run twice.
- Testing is ongoing due to poor mistakes on my part. I was accidentally testing against beta2. Beta 2 had no problem downloading and building rocks, but the package.paths are not correct for use with the local modules. Will continue testing.