cakephp/cakephp — pull request #5384 by okinaka (2014-12-11 02:03:34+00:00)
Title: 2.5: Fixing Mysql::describe() for timestamp.

CakeTestFixture could not import schema when it has CURRENT_TIMESTAMP as a default value.

For example:
```sql
CREATE TABLE timestamp_default_values (
id INT(11) NOT NULL AUTO_INCREMENT,
phone VARCHAR(10),
limit_date TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
PRIMARY KEY(id)
);
```

Mysql::createSchema() contains "`limit_date` timestamp DEFAULT NULL NOT NULL".
It is expected "NULL" or "NOT NULL" instead of "DEFAULT NULL NOT NULL".