Rakefile: Added sudo to yapp.js install command to allow global installation on certain platforms
Rakefile: Added sudo to yapp.js install command to allow global installation on certain platforms

mafintosh/tv.js,mafintosh/tv.js,SamyPesse/tv.js,thefkboss/tv.js,thefkboss/tv.js,thefkboss/tv.js,SamyPesse/tv.js