Version 2.0.8 Stable

• Added Phalcon\Security\Random::base58 - to generate a random base58 string
• Added Phalcon\Logger\Adapter::isTransaction() to check whether the logger is currently in transaction
  mode or not (Phalcon 1.3 behavior)
• Phalcon\Session\Adapter now closes the session when the adapter is destroyed (Phalcon 1.3 behavior)
• Fixed fetching of data in modes FETCH_CLASS, FETCH_INTO and FETCH_FUNC in Phalcon\Db
• Added missing code property in Phalcon\Validation\Message available in Phalcon 1.3.x
• Added Phalcon\Db\Column::TYPE_TIMESTAMP to allow migrations on these kind of columns
• Added Phalcon\Db\ColumnInterface::hasDefault to check if a column has a default value declared in its database
  column definition
• Fixed determining of default value for column in Phalcon\Db\Dialect\MySQL, Phalcon\Db\Dialect\Sqlite and
  Phalcon\Db\Dialect\Postgresql classes
• Now Phalcon\Mvc\Model::__call invokes finders as in __callStatic
• Fixed Phalcon\Db\Dialect\Postgresql::getColumnDefinition for BIGINT and BOOLEAN data types
• Fixed BOOLEAN default value in Phalcon\Db\Dialect\Postgresql
• Added Phalcon\Validation\Validator\CreditCard - validation credit card number using luhn algorithm