* seastar 1f68be436f...e888b1df9c (8):
> sharded: Make map work with mapper that returns a future
> cmake: Remove FindBoost.cmake
> Reduce noncopyable_function instruction cache footprint
> doc: add Loops section to the tutorial
> Merge "Move file related code out of reactor" from Asias
> Merge "Move the io_queue code out of reactor" from Asias
> cmake: expose seastar_perf_testing lib
> future: class doc: explain why discarding a future is bad
- main.cc now includes new file io_queue.hh
- perf tests now include seastar perf utilities via user, not
system, includes since those are not exported
f12feec2c9