Phalcon\Session\Adapter and Phalcon\Session\Bag improvements

[ghost]

Phalcon Kernel:

• fix phalcon_hash_get() when type is BP_VAR_RW or BP_VAR_W;
• null offset passed to phalcon_update_property_array() appends a new element;
• added object_properties_init() for PHP 5.3

Phalcon\Session\BagInterface:

• added remove() method to the interface

Phalcon\Session\Adapter:

• implements ArrayAccess, Countable, IteratorAggregate
• optimized using object handlers
• __get() and offsetGet() return values by reference to allow indirect modification (see 'Indirect modification of overloaded property' exception in session bag, probably other similar places too? #1895)

Phalcon\Session\Bag:

• implements ArrayAccess, Countable, IteratorAggregate
• __get() and offsetGet() return values by reference to allow indirect modification (see 'Indirect modification of overloaded property' exception in session bag, probably other similar places too? #1895)

[phalcon]

Thanks