* More compliant with Cli**er.
* Support for use acItems directly without internal copy.
This permit modify acItems and reflect this changes.
* Support for use xSelect directly, if its an array,
without internal copy.
This permit modify xSelect and reflect this changes.
* No call to xUserFunc again when xUserFunc its call with
nMode = AC_EXCEPT, and xUserFunc return AC_CONT
* Always redraw the page when return from xUserFunc.
* Support for return AC_REDRAW.
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