Rabin tests fail on current master

[vmx]

The rabin module doesn't compile successfully on Linux. The problem is in the nan module.

Steps to reproduce:

npm install
npx mocha --timeout 5000 --ui bdd --colors --exit test/node.js --grep rabin

The tests will pass after installing an older version of nan:

npm install --save-optional nan@2.11.0

[vmx]

Upstream bug is: nodejs/nan#832.

[vmx]

The upstream bug got fixed and if i do a fresh install locally, tests pass.