Updated dependencies to work with Node.js v0.12.0
Updated dependencies to work with Node.js v0.12.0

Change-Id: Iab962ad8992976b1fc3e2febe4cd39e6847b4c45

lcamacho/kurento-utils-js,lcamacho/kurento-utils-js,shelsonjava/kurento-utils-js,shelsonjava/kurento-utils-js