*: Namespaces of helper classes changed to qfq. New Class 'HelperFormElement'. HTML 'fieldset' implemented.

AbstractBuildForm, BuildForm*: refacored BuildForm to AbstractBuildForm. Code get's much easier to understand.

BuildForm.php: New implemented rendering in plain and table mode. Subrecords will be displayed at the correct place. In table mode the submit button is directly below the form.

FormBuildPlain.php: first simple version of subrecord implemented

Store.php: Removed caching functionality - the speed advantage is too few against code complexity. Introduced sanatizeStore - Only STORE_CLIENT and STORE_FORM are still sanatized. All others will be trusted. This reduces overhead by accessing variables.
New function 'fillStoreTableDefinition'. Rewrote and simplify class getVar(). New function getStore() - at the moment used for debugging.

testtables.sql: Renamed tables to respect naming conventions.