There is no guarantee on the ordering select() returns file descriptors.
So if, e.g. in the case of sudo_nonexistent.yml, sudo prints an error
to a single FD before exitting, there was previously no gurantee
iter_read() would read off the error before failing due to detecting
disconnect on any FD.
Now instead we keep reading while any non-disconnected FD exists.
- Add new Travis mode, "ansible_tests.sh" that runs
integrations/all.yml. Slowly build this up over time to cover more of
the existing junk.
- Add basic assertions on the output of the existing runner__* files.
- Wire up 2.4.3/2.5.0 jobs in Travis.
David Wilson