Mutate is not part of dgraph.API as of v1.1.0

[markmssd]

I'm using the sample test file to run e2e tests.

However, something is off in this simple test file when using DGraph v1.1.0:
https://github.com/dgraph-io/dgraph-js/blob/master/examples/simple/index.js#L71

If used against older versions, <= v1.0.17, it executes successfully.

[prashant-shahi]

@markmssd The dependency versions have been updated for the examples.

Thanks for pointing it out.