update setup.py for moved tests/ and examples/
update setup.py for moved tests/ and examples/

rc/sfepy,sfepy/sfepy,rc/sfepy,BubuLK/sfepy,sfepy/sfepy,vlukes/sfepy,vlukes/sfepy,BubuLK/sfepy,rc/sfepy,BubuLK/sfepy,vlukes/sfepy,sfepy/sfepy