allow underscores in variable names
allow underscores in variable names

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