Revert C++11-related changes
Revert C++11-related changes

Crowndev/crowncoin,Crowndev/crowncoin,domob1812/crowncoin,Crowndev/crowncoin,domob1812/crowncoin,Crowndev/crowncoin,domob1812/crowncoin,Crowndev/crowncoin,domob1812/crowncoin,domob1812/crowncoin,domob1812/crowncoin,Crowndev/crowncoin