Merge remote-tracking branch 'origin/master' into btree-v2

CMakeLists.txt

cmake/BuildSophia.cmake

cmake/luajit.cmake

cmake/package.cmake

doc/www-data.in/download.cmake

src/CMakeLists.txt

src/lua/digest.lua

src/lua/init.cc

test/box/auth_access.result

test/box/auth_access.test.lua

test/box/digest.result

test/box/digest.test

test/box/misc.result

test/box/misc.test.lua

test/lib/app_server.py

test/lib/test_suite.py

test/lib/unittest_server.py

test/module/net_sql.mysql.result

test/module/net_sql.mysql.test.lua

test/module/net_sql.pg.result