Simplify Gruntfile.js.
Simplify Gruntfile.js.

Make use of templates, remove unneeded arrays.

mpc-hc/mpc-hc.org,Underground78/mpc-hc.org,mpc-hc/mpc-hc.org,mpc-hc/mpc-hc.org,kasper93/mpc-hc.org,FeodorFitsner/mpc-hc.org,Underground78/mpc-hc.org,kasper93/mpc-hc.org,Underground78/mpc-hc.org,FeodorFitsner/mpc-hc.org,FeodorFitsner/mpc-hc.org