simpiistic

This reverts commit 8eb214533ab171dcba5feaca8ab3467fbadb1455.

This behaviour can be disabled:
 - for a given query, by passing ignore_unknown_query_parameter=True. This can
   be helpful if you pass user parameters to the catalog, like listbox does.
 - globally, by setting sql_catalog_raise_error_on_unknown_query_parameter
   property on catalog. This can be helpful if you just want to hide errors
   from users without having to fix the code.

This reverts commit 456574992e1f05999b251efa9169cff6b9436fef.

This reverts commit f54bdfa08f601abefc7ff8f74667f1068e76a0f1.

This reverts commit 0806c1deb0d0a3dd8ef6e1b2f8e8fd4323ec705d.

LiveTest: set a default value for initial_transaction_hash so that _close does not fail when setUp has failed

There is no reason to set the price on a line that is not at movement because it would contain other lines or cells

This uses much less memory

basically, rewrite :
self.assertEqual(result_of_complex_method, result_of_another_complex_method)
into:
self.assertEqual(expected_value, result_of_another_complex_method)