Created tests indicating behavior
Created tests indicating behavior

- Identifier name defaults to "id"
- Identifier name is mutable
- getIdentifier() uses identifier name to lookup identifier

svycka/zend-mvc,MadCat34/zend-mvc,MadCat34/zend-mvc,turrsis/zend-mvc,turrsis/zend-mvc,ezimuel/zend-mvc,ezimuel/zend-mvc,svycka/zend-mvc