rename dw_surface_integrate_variable -> dw_surface_integrate_w
rename dw_surface_integrate_variable -> dw_surface_integrate_w

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