Merge branch 'master' of github.com:tarantool/tarantool

doc/user/configuration-reference.xml

doc/user/connectors.xml

doc/user/language-reference.xml

doc/user/persistence-architecture.xml

doc/user/preface.xml

doc/user/server-administration.xml

doc/user/stored-procedures.xml

doc/user/tutorial.xml

src/CMakeLists.txt

src/admin.cc

src/box/box.cc

src/box/lua/call.cc

src/box/replication.cc

src/box/tree_index.cc

src/errinj.h

src/lib/salad/bps_tree.h

src/lua/init.cc

src/lua/log.lua

src/lua/pickle.cc

src/lua/pickle.h