Allow Steps::Error instants to rise exceptions easily
Allow Steps::Error instants to rise exceptions easily

`raise error` will raise original exception

adamruzicka/dynflow,dLobatog/dynflow,dLobatog/dynflow,Dynflow/dynflow,ares/dynflow,iNecas/dynflow,ares/dynflow,dLobatog/dynflow,Dynflow/dynflow,Dynflow/dynflow,ares/dynflow,daviddavis/dynflow,xprazak2/dynflow,xprazak2/dynflow,iNecas/dynflow,daviddavis/dynflow,daviddavis/dynflow,dLobatog/dynflow,daviddavis/dynflow,adamruzicka/dynflow,jlsherrill/dynflow,Dynflow/dynflow,adamruzicka/dynflow,jlsherrill/dynflow,adamruzicka/dynflow