HAPI servers to test are hard-coded into the test, need to read all.txt (or all.json)

[jbfaden]

HAPI servers to test are hard-coded into the test, need to read all.txt. This file all.txt is going to be rewritten as all.json, and the code should use that when it is available.

[jbfaden]

(I can't assign this to me, but this will be done by me.)