'Make' commands to tag builds and push to npm, master, and gh-pages, all...
'Make' commands to tag builds and push to npm, master, and gh-pages, all...

... upstream.

The new targets are really just commands to be executed in order.
'git-update-publish' is the only one we need to issue. This command will only
work if you have write-permission to google/traceur-compiler

Review URL: https://api.github.com/repos/google/traceur-compiler/issues/853

Closes #853.

arv/traceur-compiler,kittens/traceur-compiler,lintangarief/traceur-compiler,rossberg-chromium/traceur-soundscript,longze/traceur-compiler,guybedford/traceur-compiler,rossberg-chromium/traceur-soundscript,bjlxj2008/traceur-compiler,bazaarvoice/traceur-compiler,renie/traceur-compiler,mathiasbynens/traceur-compiler,astralfoxy/mirai-traceur,sebgod/traceur-compiler,arv/traceur-compiler,google/traceur-compiler,vicb/traceur-compiler,sebmck/traceur-compiler,google/traceur-compiler,wilsonokibe/traceur-compiler,bjlxj2008/traceur-compiler,lintangarief/traceur-compiler,sebgod/traceur-compiler,pandoraui/traceur-compiler,sebmck/traceur-compiler,bazaarvoice/traceur-compiler,johnjbarton/traceur-compiler,kittens/traceur-compiler,sid0818/traceur-compiler,sid0818/traceur-compiler,pandoraui/traceur-compiler,johnjbarton/traceur-compiler,longze/traceur-compiler,vicb/traceur-compiler,renie/traceur-compiler,wilsonokibe/traceur-compiler