Merge branch 'tt-merge-servers'

test/big/bitset.test.lua

test/big/hash.test.lua

test/big/hash_multipart.test.lua

test/big/iterator.test.lua

test/big/lua.test.lua

test/big/sql.result

test/big/sql.test.py

test/big/suite.ini

test/big/tree_pk.test.lua

test/big/tree_pk_multipart.test.lua

test/big/tree_variants.test.lua

test/box/admin.test.py

test/box/admin_coredump.result

test/box/admin_coredump.test.lua

test/box/args.test.py

test/box/cjson.result

test/box/cjson.test.lua

test/box/configuration.test.py

test/box/errinj.result

test/box/errinj.test.lua