Update install.erb
Update install.erb

http://nodejs.org/dist/latest/SHASUMS.txt is not exists anymore
puphpet/puppet-puphpet,webit4me/puppet-puphpet,webit4me/puppet-puphpet,webit4me/puppet-puphpet,puphpet/puppet-puphpet,puphpet/puppet-puphpet,vrtxf/puppet-puphpet