Computing deleted migrations

[fabiopaiva]

If you delete migration, you must compute as unavailable migrations. The problem:
i deleted 2 migrations in my code, this is status output

== Configuration

>> Driver:                                             mysql
>> Database:                                           paiva_ce
>> Migrations table:                                   migrations
>> Migrations directory:                               /home/paiva.info/ce-api/public/migrations
>> Migrations availables:                              1
>> Executed migrations:                                2
>> New migrations:                                     -1
>> Latest migration:                                   20160129012154
>> Next migration:                                     20160129164755
>> Next migration description:                         Migration description