Merge pull request #755 from nicolasnoble/feedback

include/grpc/support/alloc.h

include/grpc/support/atm_win32.h

include/grpc/support/port_platform.h

include/grpc/support/slice.h

src/core/statistics/census_log.c

src/core/support/alloc.c

src/core/support/cpu_linux.c

src/core/support/cpu_posix.c