call_id cannot be destroyed(via RPC interfaces) before being used by a RPC & Replace Controller._run_done_state with more general allow_done_to_run_in_place

Update redis_client.md

r35401: Refactored interruptions on bthreads. The semantic is more similar to pthread's and EINTR is returned instead of ESTOP.

perfer dynamically linking gperftools and glog to avoid explicit deps on libunwind and liblzma; built UT in travis-ci

add dockerfile