#26 Fix a number of vulnerable sub dependencies (#27)
* #26 Fix a number of vulnerable sub dependencies
* Remove Node 9 and 11, add Node 12 as supported versions
* Try to use forked version of neon as patch to get Node 12 working
* Change to point to direct git hash
* Upgrade to Recrypt 0.8 and consume all breaking changes. Remove export of hash256 method since it isnt needed or used
* Update README to add support for Node 12 and remove support for Node 9/11
* Update version and add changelog entry
