allow using the AgaviDateDefinitions constants in addition to the constant names  when creating the datetime validator manually
closes #684
TEH NEWLINE KEKEKE
Add support for doctrine connection settings and options, closes #712
Set current Context instance on Doctrine connections, closes #724
merge fbd96fdda3d1726d4d2072a49737059f36ea3bcf to c4b5abacecf1e89b7e739ab1e282af4d235aa4b9 (from 0.11)