[5.2] Use ComposerScripts

Update .env.example

add DB_CONNECTION as env variable - it is already checked for in config/database.php

[5.2] Allow for setting sqlite database via env

Applied fixes from StyleCI

Applied fixes from StyleCI

Use ComposerScripts to avoid loading any configuration/compiled files.

Ignore schedule files

Update of the doc for equals to Model

Remove pre-update-cmd

Can't rely on being able to run php artisan, before updating.

Fixed order of password validation in registration

Add language line for the in_array validation rule

clearing redundancy

Add language line to the validation "distinct" rule

Add language line for the "present" validation rule.

Fix password column for future hashing