Merge branch '1.10' into 2.0

src/box/CMakeLists.txt

src/box/box.cc

src/box/checkpoint.c

src/box/checkpoint.h

src/box/gc.c

src/box/gc.h

src/box/lua/info.c

src/box/memtx_engine.c

src/box/relay.cc

src/box/vinyl.c

src/box/vy_regulator.c

src/box/vy_scheduler.c

src/lua/init.c

test/replication/gc.result

test/replication/gc.test.lua

test/vinyl/errinj.result

test/vinyl/errinj.test.lua

test/vinyl/errinj_gc.result

test/vinyl/errinj_gc.test.lua

test/vinyl/replica_rejoin.result