Update dependencies

[baer]

Problem

Out of date dependencies were causing the following issues:

• Unable to npm install on Node 10
• Deprecated es2015 babel preset is no longer getting fixes for compat
• Npm reports 421 vulnerabilities (386 low, 18 moderate, 15 high, 2 critical) in the project

Fix

• Update dependencies
• Add npm run lint to the package.json - it was missing
• Add missing jasmine and istanbul dependencies to make npm run coverage work properly

[baer]

This change should be transparent. Babel's docs specify that:

"By default, it has the same behavior as previous presets to compile ES2015+ to ES5"
https://babeljs.io/docs/en/env

The great thing about this plugin (if you haven't used it yet) is that you can add config to specify a support matrix and only the applicable presets will be applied. For example, if you only want to support down to IE9 and Node LTS you could easily do that.

[baer]

These two were included as transitive deps but without a top level include they are not available in the node_modules/.bin directory which means that the npm run coverage script wasn't working.

[BenjaminVanRyseghem]

Thank you 😄

[BenjaminVanRyseghem]

in numbro 2.1.2