"dgraph-ratel -version" provides no version number #175
Description
Neither dgraph-ratel -version nor ./build/ratel -version delivers a version number.
The output in both cases is: Ratel Version: with no number
How to reproduce
Go to your terminal an type dgraph-ratel -version and press enter.
Observed behavior
Terminal output: Ratel Version:
Expected behavior
Terminal output: Ratel Version: <version number based on new versioning rules>