Fix repl.html
Fix repl.html

Make sure we use `'traceur@' + version` for the semver map.

Fixes #2039

sebgod/traceur-compiler,sebgod/traceur-compiler,johnjbarton/traceur-compiler,johnjbarton/traceur-compiler,google/traceur-compiler,arv/traceur-compiler,arv/traceur-compiler,google/traceur-compiler