Lock down NPM Dependencies via Shrink Wrap

TLDR: Lock down the ver­sions of installed pack­ages and their descen­dant pack­ages! (Bypasses NPM automated package version manager ~^ for downstream minor upgrades). TLDR: `npm install`, will install packages from npm-shrinkwrap.json not from package.json Using NPM is great because it automatically manages for us package versioning and dependency crisis easily. But problems may arise with dependencies of dependencies (NPM kinda looses control on that and with purpose so that package authors can maintain and upgrade their package.jsons). Basically by using NPM Shrink Wrap it generates the source tree of every dependency and their dependencies.