remove '_' prefix at BasicEntityPersister
remove '_' prefix at AbstractCollectionPersister
small refacory on AbstractEntityInheritancePersister
code refactoring on BasicEntityPersister
code refactoring on JoinedSubclassPersister
fix JoinedSubclassPersister#delete when supports foreign key
code refactoring on ManyToManyPersister
code refactoring on OneToManyPersister
code refactoring on SingleTablePersister
change 'use' statements
Second round of refactorings on BasicEntityPersister
Fix some CS
second round of CS fixes
Third round of refactorings on BasicEntityPersister
Fix DocBlock
Fix CS
added support for @Enum
update doctrine-common
Fix CS
Merge pull request #513 from FabioBatSilva/annot-enum

Enumeration support