(libv8-dev) : Add to the prerequisites for Ubuntu. (libpng) : Upgrade to 1.5.10.
(libv8-dev) : Add to the prerequisites for Ubuntu.
(libpng) : Upgrade to 1.5.10.

mattl/es-operating-system,mattl/es-operating-system,mattl/es-operating-system,mattl/es-operating-system,mattl/es-operating-system,mattl/es-operating-system,mattl/es-operating-system