`tarantoolctl connect <URI>` connects to a remote tarantool
instance, specified by URI and opens an interactive console
session.

Unlike other tarantoolctl subcommands it doesn't operate on
instance names.

Fixes #1288

If `default_cfg` was nil, then system will errored.

* Don't mislead users with box.cfg{} options which shouldn't be
  set under tarantoolctl.
* Mention that all data directories must have absolute paths and
  remove work_dir from example.lua (see #1406).
* Specify correct default values.

+ closes gh-1405 (right path for unix socket)
+ wrap box.cfg and loadfile with pcall
+ some variable/function scope cleanups (global -> local)
+ closes gh-1409 (check for lua syntax before running/restarting/eval server)

Use box.schema.upgrade() to upgrade.

./extra/schema_fill.lua and ./extra/schema_erase.lua were
moved to box.internal.bootstrap().

Conforming changes to gh-1334, change wal size to 5 millions, arena size to 0.5 GB and give ability for user 'guest' to read/write into 'example' space.

Content was integrated to the main documentation by
8d0b9761

http://tarantool.org/doc/book/administration.html

Use instance.available only with systemd if sysvinit is not enabled.
Otherwise (sysvinit or mixed configuration) continue to use
instance.enabled.

See #1293

tarantoolctl must not search for configuration in
PWD if started by root

A regression caused by 1c00b034

Use values generated by cmake. Needed for homebrew.

Tested and updated building instructions for Mac OS X. (by Elena Shebunyaeva)

This patch also enables daemon supervision when used with systemd.
A prerequisite for Fedora/EPEL7 packages.

Make more abstract version of key_opts parser to re-use code
for space options.

* Add -DENABLE_DIST=ON option to enable init scripts on `make install`
* Create directories for tarantoolctl on `make install`
* Add logrotate script to `make install`
* Fix example.lua to work out of the box
* Use /etc/default instead of /etc/sysconfig on Debian
* Fix directories permissions for tarantoolctl
* Add support for systemd-tmpfiles (required by Fedora)

Needed for Fedora buildbot

see https://cmake.org/cmake/help/v3.4/variable/CMAKE_BUILD_TYPE.html

Provide a default instance in the installation script, but don't
start it.