UnionOfRAD/lithium — pull request #675 by jails (2012-11-08 18:27:12+00:00)
Title: Close #673

`MultiKeyRecord` modifications:
- Ignore order in keys for offsetGet(), offseExists(), offsetUnset().
- To keep consistency, `true`, `false`, `null` and `array()` as key are casted to 0 on offsetGet(). And `true`, `false`, `null` and `array()` as key are ignored on offsetSet() (i.e $tab[true] = 'value' as the same behavior as $tab[]= 'value')