- Remove ES5 parser exception from .eslintrc
- Configure Karma to use Babel to transpile ES6 sources to ES5,
because PhantomJS does not support ES6
- Upgrade es5-shim to es6-shim
Notable side-effects:
- loopback no longer exports "caller" and "arguments" properties
- kv-memory connector is now properly added to the connector registry
- the file "test/support.js" was finally removed