De-obfuscate Executor.

Transformers are what jobs work on, not artifacts.

Change-Id: Ib267ec247dd6d165347511f0a0fdb3db00c58832
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
Use dynamic rules in some autotests.

They are not strictly necessary there, but add coverage of this feature.

Change-Id: I4409575cb8a81b2fca0166388afb56c4701616b1
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
Do not call processEvents() in executor.

We must absolutely never do that, as it can mess with the state management,
leading to disastrous results.
In effect, this reverts commit ea269191f4.

Change-Id: Ib5ec6e00264312aaabd066ed9adedb65f315fdef
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>