* Added timeouts to all tests that were missing them
- any issue we have will likely result in deadlocks/starvation so its
best if all tests quickly timeout rather than require getting killed
or have the CI timeout itself
* Added a `support` module and put a bunch of helpers there to DRY the
tests
* Cargo runs each integration-style-test in its own process. Since the
tests use global data structures specific to the process, we should run
them in an isolated manner to avoid having cross-test interactions
* Fixesalexcrichton/tokio-signal#39
Run multiple loops (both in parallel and sequentially) to make sure
broadcasting to multiple of them works and we work even after the
initial loop has gone away.
Add the driver task, connecting the signal handler wakeups to the
wakeups of of the streams.
It is a prototype-quality code, a lot of cleanups and similar is needed.
Ivan Petkov