remove 'functions' argument of ConstantFunction.__init__()
remove 'functions' argument of ConstantFunction.__init__()

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