update Probe.__call__() to support keyword arguments
update Probe.__call__() to support keyword arguments

rc/sfepy,RexFuzzle/sfepy,BubuLK/sfepy,RexFuzzle/sfepy,lokik/sfepy,BubuLK/sfepy,RexFuzzle/sfepy,RexFuzzle/sfepy,rc/sfepy,rc/sfepy,sfepy/sfepy,vlukes/sfepy,sfepy/sfepy,BubuLK/sfepy,lokik/sfepy,lokik/sfepy,sfepy/sfepy,lokik/sfepy,vlukes/sfepy,vlukes/sfepy