Bump dependencies

[compulim]

npm audit fix for this report.

• deep-extend from 0.4.2 to 0.5.1
• randomatic from 1.1.7 to 3.1.0

                       === npm audit security report ===

# Run  npm update fill-range --depth 8  to resolve 1 vulnerability

  Low             Cryptographically Weak PRNG

  Package         randomatic

  Dependency of   webpack [dev]

  Path            webpack > watchpack > chokidar > anymatch > micromatch >
                  braces > expand-range > fill-range > randomatic

  More info       https://nodesecurity.io/advisories/157



# Run  npm update fsevents --depth 4  to resolve 1 vulnerability

  Low             Prototype Pollution

  Package         deep-extend

  Dependency of   webpack [dev]

  Path            webpack > watchpack > chokidar > fsevents > node-pre-gyp >
                  rc > deep-extend

  More info       https://nodesecurity.io/advisories/612



found 2 low severity vulnerabilities in 352 scanned packages
  run `npm audit fix` to fix 2 of them.

[ckkashyap]