make identifiers consistently like-this not like_this
make identifiers consistently like-this not like_this

perl6/perl6-examples,stmuk/perl6-examples,Quinny/perl6-examples,agentzh/perl6-examples,shlomif/perl6-examples,Quinny/perl6-examples,shlomif/perl6-examples,shlomif/perl6-examples,Quinny/perl6-examples,Quinny/perl6-examples,stmuk/perl6-examples,stmuk/perl6-examples,stmuk/perl6-examples,shlomif/perl6-examples,perl6/perl6-examples,perl6/perl6-examples,perl6/perl6-examples,agentzh/perl6-examples,Quinny/perl6-examples,perl6/perl6-examples,agentzh/perl6-examples,stmuk/perl6-examples,shlomif/perl6-examples