Specifying timestamps in a migration does not honor options

Currently, this will fail in a migration

    create_table :accounts do |accounts_table|
      accounts_table.with_options :null => false do |t|
        t.string :name
        t.timestamps
      end
    end

The t.timestamps method should be updated to take even just a subset of options (like :null => false as above). This patch (attached) will allow you to specify additional options using .with_options as above, or even directly:

    create_table :passwords do |t|
      t.timestamps :null => false
    end