dont fail when copying non-existant src folder, as this prevents examples building
dont fail when copying non-existant src folder, as this prevents examples building

vizewang/JavaHamcrest,dkomanov/JavaHamcrest,akruijff/JavaHamcrest,wgpshashank/JavaHamcrest,josephw/JavaHamcrest,dkomanov/JavaHamcrest,rysh/JavaHamcrest,vizewang/JavaHamcrest,mmichaelis/JavaHamcrest,tomwhoiscontrary/JavaHamcrest,mnk/hamcrest,mmichaelis/JavaHamcrest,akruijff/JavaHamcrest,plow/JavaHamcrest,jforge/JavaHamcrest,mnk/hamcrest,alb-i986/JavaHamcrest,josephw/JavaHamcrest,jforge/JavaHamcrest,plow/JavaHamcrest,tomwhoiscontrary/JavaHamcrest,rysh/JavaHamcrest,alb-i986/JavaHamcrest,wgpshashank/JavaHamcrest