Merge branch 'tt-merge-servers'

test/lib/python_tarantool_server.py

test/lib/tarantool_connection.py

test/lib/tarantool_server.py

test/lib/test_suite.py

test/memcached/binary-get.test.py

test/memcached/bogus-commands.test.py

test/memcached/cas.test.py

test/memcached/expirations.test.py

test/memcached/flags.test.py

test/memcached/flush-all.test.py

test/memcached/getset.test.py

test/memcached/incrdecr.test.py

test/memcached/lua.test.py

test/memcached/multiversioning.test.py

test/memcached/noreply.test.py

test/memcached/off.test.py

test/memcached/suite.ini

test/python/suite.ini

test/python/tarantool.cfg

test/replication/consistent.test.py