[5.5] Fix order of run migrations

[mnabialek]

When you run migration

2016_01_01_000000_create_users_table.php

first

and then you add package to your application that has migration:

2014_01_01_000000_create_projects_table.php

and you run this, in database you should have

Migration	Batch
2016_01_01_000000_create_users_table.php	1
2014_01_01_000000_create_projects_table.php	2

When you now run

php artisan migrate:rollback

because migrations are ordered by migration descending, the 2016_01_01_000000_create_users_table.php will be rolled back what could be quite surprising.

That's why the sorting order should by first by batch descending and then by migration descending to rollback migrations in the order they were run.

[paulofreitas]

Nice finding, indeed it should be ordered by the batch number first. 👍