Moved Doctrine_Migration_Builder and Doctrine_Import_Builder to Doctrine_Builder_Migration and Doctrine_Builder_Record. Updated code to work with new class names.

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.

'import' is a reserved word in PHP 6. Changed all method names / properties name from import to imprt. This means the documentation will need to be changed

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

* Added some test cases for the importing part. The new tests will fail for now because of the lacking implementation.
Refs #11