Added support to leftJoin and innerJoin parameters. Included some tests that failed due to an existent Doctrine bug.

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The unset functionality is not working for foreignKey relations

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.

Makes it easier to see the dependencies between these two concerns, cache the results of the query parsing process later on, implement & use alternative hydrators to experiment with different algorithms etc. etc.
Other small refactorings.

Refactoring. Started to introduced a clear separation between column names and field names (aka column aliases).\nDoctrine_Connection, DQL Parser classes/methods map field names => column names.\nDoctrine_Hydrate maps column names => field names during hydration.\nColumn names are only stored in Doctrine_Table:: and Doctrine_Table::.\nRelations use column names in 'local'/'foreign'.\nWhen using field names (column aliases) you need to use the column names in 'local'/'foreign' when setting up a relation (hasOne/hasMany), not the field names.\n\n In other words column names are only used to communicate with the database. field names are used everywhere else. the casing of field names does not matter. column names are forced to lower case for portability. If you dont use field names (column aliases) your column names are your field names (and therefore all lowercase).

and table classes.

refetch state after preSave listener in unit of work. if state changes in preSave listener it is not taken into concideration when an object is saved/deleted etc. also fixed some small stuff in tests and added new coverage report

refactored test harness and moved logic away from the run.php file. fixed coverage reporting so that it now generates a full html coverage files. look in tests/coverage/index.php in a browser for details

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