Merge branch 'tt-pythonize'

.gitmodules

test/big/sql.result

test/big/sql.test.py

test/box/admin.result

test/box/admin.test.lua

test/box/admin.test.py

test/box/bad_trigger.result

test/box/bad_trigger.test.py

test/box/iproto.result

test/box/lua.result

test/box/lua.test.py

test/box/reconfigure.result

test/box/reconfigure.test.py

test/box/snapshot.result

test/box/snapshot.test.py

test/box/sql.result

test/box/sql.test.py

test/box/stat.result

test/box/stat.test.lua

test/box/stat.test.py