Merge branch '1.9' into 1.10

extra/dist/tarantoolctl.in

src/box/memtx_engine.c

src/box/vinyl.c

src/box/vy_log.c

src/box/vy_run.c

src/box/vy_run.h

src/box/xlog.c

src/box/xlog.h

src/curl.c

src/curl.h

src/errinj.h

src/fiber.c

src/http_parser.c

src/http_parser.h

src/lua/httpc.c

test/app-tap/http_client.test.lua

test/app-tap/httpd.py

test/app/fiber.result

test/app/fiber.test.lua

test/box/errinj.result