update godep to 1.4.beta1 + libgo upgrade
update godep to 1.4.beta1 + libgo upgrade

thomasalrin/cloudinabox,megamsys/cloudinabox,indykish/cloudinabox,rajthilakmca/megdc,indykish/megdc,thomasalrin/cloudinabox,thomasalrin/cloudinabox,megamsys/megdc,thomasalrin/cloudinabox,indykish/cloudinabox,thomasalrin/cloudinabox,vijaykanthm28/megdc,indykish/cloudinabox,indykish/megdc,megamsys/cloudinabox,megamsys/cloudinabox,thomasalrin/cloudinabox,rajthilakmca/cloudinabox,rajthilakmca/megdc,indykish/megdc,rajthilakmca/cloudinabox,megamsys/megdc,vijaykanthm28/megdc,megamsys/megdc,vijaykanthm28/megdc