Moved static methods from Doctrine class to Doctrine_Facade and updated the tasks to use Doctrine_Facade.

Fleshing out functionality of CLI system and changed syntax of migration classes to only required a to parameter since we already know where we are coming from.

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Ticket: 150

added Doctrine_Access::__isset() and Doctrine_Access::__unset() for complete support of magic method invocations

removing the closing PHP tags form all php files, it\'s not needed and can break sessions which are whitespace sensitive

Doctrine_Table::find now returns false if record is not found (instead of throwing InvalidKeyException) 

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