fix typo in changelog [ci skip]
Fix Apache Directives [ci skip]

Directives need to be placed on their own lines in order to work. Tested on: `Server version: Apache/2.2.22 (Ubuntu); Server built:   Mar 19 2014 21:11:15`
Merge pull request #15636 from hundredwatt/patch-1

Fix Apache Directives [ci skip]
cleanup, get rid of trailing whitespace. [ci skip]

Follow up to #15636.

/cc @hundredwatt
fk: `add_foreign_key` and `remove_foreign_key` for PostgreSQL adapter.
fk: add `foreign_keys` for PostgreSQL adapter.
fk: `foreign_keys`, `add_foreign_key` and `remove_foreign_key` for MySQL
fk: generalize using `AlterTable` and `SchemaCreation`.
fk: `:primary_key` option for non-standard pk's.
fk: dump foreign keys to schema.rb

respect `table_name_prefix` and `table_name_suffix`.
fk: support dependent option (:delete, :nullify and :restrict).
fk: make `add_foreign_key` reversible.
fk: infere column name from table names.

This allows to create and remove foreign keys without specifying a column.
fk: rename `dependent` to `on_delete`
fk: support for on_update
fk: raise when identifiers are longer than `allowed_index_name_length`.
fk: dump foreign keys at the bottom to make sure tables exist.
fk: `add/remove_foreign_key` are noop for adapters that don't support fk