Update README, add work cronjob

---

 * perl >= 5.10

 * Cache::File (part of the Cache module)

 * Crypt::Eksblowfish

 * DateTime

 * DateTime::Format::Strptime

 * Email::Sender

 * Geo::Distance

 * Mojolicious

 * Mojolicious::Plugin::Authentication

 * Mojo::Pg

 * Travel::Status::DE::IRIS

 * UUID::Tiny

 * JSON

If perl modules are not packaged for your distribution, you can use carton or

cpanminus to install them locally. In this case, you need to have development

headers for libxml and libpq (postgresql) on your system.  In the project root

directory (where `cpanfile` resides), run either

 * carton or cpanminus

 * build-essential

 * libpq-dev

 * git

Perl Dependencies

---

travelynx depends on a set of Perl modules which are documented in `cpanfile`.

After installing the dependencies mentioned above, you can use carton or

cpanminus to install Perl depenencies locally.

In the project root directory (where `cpanfile` resides), run either

```

carton install

cpanm --installdeps .

```

and then set `PERL5LIB` before executing any travelynx commands or wrap them

with `carton exec`, e.g. `carton exec hypnotoad index.pl`

Recommended

---

 * Geo::Distance::XS (speeds up statistics)

 * JSON::XS (speeds up API and statistics)

Dependencies On Docker

---

 * cpanminus

 * build-essential

 * libpq-dev

 * git

 * ssmtp

and set `PERL5LIB=.../local/lib/perl5` before executing any travelynx

commands (see configs in the examples directory) or wrap them with `carton

exec`, e.g. `carton exec hypnotoad index.pl`

Setup

---

First, you need to set up a PostgreSQL database so that travelynx can store

user accounts and journeys. It must be at least version 9.4 and should use a

user accounts and journeys. It must be at least version 9.4 and must use a

UTF-8 locale. The following steps describe setup on a Debian 9 system, though

setup on other distribution should be similar.

* Create the database: `sudo -u postgres createdb -O travelynx travelynx`

* Copy `examples/travelynx.conf` to the application root directory

  (the one in which `index.pl` resides) and configure it

* Initialize the database: `perl index.pl database migrate`

* Initialize the database: `carton exec perl index.pl database migrate`

Your server also needs to be able to send mail. Set up your MTA of choice and

make sure that the sendmail binary can be used for outgoing mails. Mail

  (see `examples/travelynx.service` for a systemd unit file)

* Configure your web server to reverse-provy requests to the travelynx

  instance. See `examples/nginx-site` for an nginx config.

* Install a `timeout 5m perl index.pl work -m production` cronjob. It is used

  to update realtime data and perform automatic checkout and should run

  every three minutes or so, see `examples/cron`.

You can now start the travelynx service, navigate to the website and register

your first account.

your first account. There is no admin account, all management is performed

via cron or (in non-standard cases) on the command line.

Please open an issue on <https://github.com/derf/travelynx/issues> or send a

mail to derf+travelynx@finalrewind.org if there is anything missing or

PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin

PERL5LIB=/srv/www/travelynx/local/lib/perl5

MAILTO=root

*/3 * * * * travelynx timeout 5m perl /srv/www/travelynx/index.pl work -m production