Generation of automatic identifiers for the labels of "SqlCommandBean"

[cvarela]

Currently it is necessary to specify a value for the "label" attribute of the script and query elements:

<task name="test" ...>
    <script label="${parent.name}.1">
	<query label="${parent.name}.1">...</query>
	<query label="${parent.name}.2">...</query>
    </script>
</task>

This parameter should be optional and generated automatically when no value is provided in the configuration file.