adds frep and js-prettify for examples
adds frep and js-prettify for examples

cgvarela/assemble,xetryj/assemble,valentinvieriu/assemble,assemble/grunt-assemble,valentinvieriu/assemble,makotot/assemble,edrohler/assemble,assemble/assemble,assemble/assemble,assemble/grunt-assemble,davidwickman/assemble,a0000001/test,edrohler/assemble,cgvarela/assemble,avr/assemble,davidwickman/assemble,xetryj/assemble