Merge remote-tracking branch 'origin/1.7' into 1.8

debian/changelog

debian/tarantool.service

src/box/CMakeLists.txt

src/box/alter.cc

src/box/box.cc

src/box/index.cc

src/box/key_def.cc

src/box/key_def.h

src/box/lua/space.cc

src/box/schema.cc

src/box/schema.h

src/box/space.cc

src/box/space.h

src/box/sysview_engine.cc

src/box/sysview_index.cc

src/box/vinyl.c

src/box/vinyl.h

src/box/vinyl_engine.cc

src/box/vinyl_index.cc

src/box/vinyl_index.h