* xlog/snapshot file format iterator object added (tnt_log)
* tnt_snapshot stream created
* refactored tnt_xlog and tnt_stream streams to use the same tnt_log object
* storage iterator added (for fetching tuples from snapshot or other
tuple storage)
* console client refactored to support snapshot files (cat command)
(this also fix for https://bugs.launchpad.net/tarantool/+bug/1028475)
* snapshot test case added

Now when the client argument format was changed, and it has new features,
bump its version.

bugfix https://bugs.launchpad.net/tarantool/+bug/1045830

console client log flush prior to close.

1. tnt_lex updated to support external keywords definitions
2. command line client extended to support local commands
3. new commands added: tee, notee, loadfile
https://blueprints.launchpad.net/tarantool/+spec/client-local-commands

implemented (hexademical output needed)

(https://bugs.launchpad.net/tarantool/+bug/1032583)

End the copyright madness. Tarantool authors maintain a shared
copyright on the code base. Remove individual copyright (c) from
specific files and put a single AUTHORS file in the project top.

macosx2: merging in (manually) previously unmerged changes (from macosx-port1), non-working tests: box/lua.test, box_big/lua.test connector_c/xlog_rpl.test

* tnt_stream_rpl added
* console client replica mode added

* stream write_request virtual method added
* initial implementation of wal-cat, wal-player in console client

Fix brokken static compilation of the client (we'll have
to find another solution for Darwin).

Fix bug https://bugs.launchpad.net/tarantool/+bug/988701
"Build with '-DENABLE_CLIENT=true' was broken'

(as part of blueprint Add replication support to the client library
https://blueprints.launchpad.net/tarantool/+spec/client-replication)
still to do: update request parsing, iov preparation (for resend) and proper
commments.

absolute values.