update compiler not to include header functions into every j20n file
update compiler not to include header functions into every j20n file

Pike/l20n.js,projectfluent/fluent.js,mail-apps/l20n.js,stasm/l20n.js,Swaven/l20n.js,zbraniecki/l20n.js,zbraniecki/fluent.js,Pike/l20n.js,projectfluent/fluent.js,mail-apps/l20n.js,zbraniecki/l20n,projectfluent/fluent.js,l20n/l20n.js,zbraniecki/fluent.js,zbraniecki/l20n,stasm/python-l20n