Increase maximum test running time to 1 day.

Fixes #166.
Add reverse member to start.test_start JSON, which is 1 in --reverse mode.

This lets us tell easily from the JSON output whether a test was run in
--reverse mode or not.  Resolves #167 (one comment made in that issue
anyway).
Merge branch 'master' of github.com:/esnet/iperf
Explicitly run ldconfig after "make install".

This might address Issue #153.
Regen.
First step:  Generate all the JSON goop regardless of --json or not.