Fix getting option value from configuration
Made Propel HHVM compatible with MySQL.
Merge pull request #561 from marcj/hhvm

Made Propel HHVM compatible with MySQL.
Merge pull request #570 from drodil/master

Fix getting option value from configuration
added TransactionTrait, fixes nested transactions
Merge pull request #577 from gharlan/transaction-trait

added TransactionTrait, fixes nested transactions
use transaction()