use argparse instead of optparse in run_tests.py
use argparse instead of optparse in run_tests.py

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