Added recipes to build Ubuntu Raring Ringtail 64-bits
Fixed instructions for newer veewee versions
Added recipes for Ubuntu 13.04 Raring Ringtail 13.04 32-bits
Added links for packaged boxes
Changed boxes URLs for goo.gl to get some analytics on them
Merge pull request #2 from rafaelrosafu/master

Added boxes for 13.04 32 and 64 bits