Support CordovaJS in Content Assistant for Tern.

Signed-off-by: vrubezhny <vrubezhny@exadel.com>
Merge pull request #27 from vrubezhny/cordovajs

Support CordovaJS in Content Assistant for Tern. See https://github.com/angelozerr/tern.java/wiki/Tern-&-CordovaJS-support for more info.

Many thank's Victor!