sonata-project/SonataPropelAdminBundle — pull request #20 by K-Phoen (2013-08-29 20:22:00+00:00)
Title: Fix: identifier values getters

`getIdentifierValues()` must always return an array and
`getNormalizedIdentifiers()` must return a string.

The `ModelManager` was updated according to these constraints and these
two methods now work with composite PK. The `find()` method was also
updated to work with composite PK.