- lazy load the _tableFactory and record listener in order to reduce the dependencies for a to be created DBAL package

reverting the reorganization done in 3455-3456 in order to make merging my experimental branch to trunk easier.

Preparation for new organization of code in to sub packages. Changed autoload() to work with new structure.

Refactorings for schema files and Doctrine_Record builder. More to come but got held up on some things that zYne- must fix first.

Introduced a new attribute ATTR_AUTOLOAD_TABLE_CLASSES that can be used to control whether Doctrine should try to autoload custom table class files when looking for them.

More refactorings. Commented out the plugin tests for now. They seem to wreak havoc with a lot of other tests (especially validator tests) and i havent found the reason yet.

some small refactorings. adding docblocks. creating guard clauses. refactor our some code into methods. no aditional test failures so it looks ok. also added some @todo comments

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deprecated validation attributes VLD, AUTO_LENGTH_VLD and AUTO_TYPE_VLD, introduced new attribute ATTR_VALIDATE

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  * Updating AuditLog to new way of doing array hydration

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2. Merging Doctrine_Db functionality into Doctrine_Connection

3. Merging Doctrine_Db modules to Doctrine_Connection plugins

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