- export every function directly
- improve 'some' & 'every' for early exit
- use 'Object.values' for 'values' instead of 'Object.keys.map' (2x perf)
- isObject: first check for null
- named imports from @feathersjs/commons in every package
- deprecate 'keys', use `Object.keys`
- deprecate 'values', use `Object.values`
- deprecate 'extend', use `Object.assign`
- use type guard for `isPromise`, `isObject` & `isObjectOrArray`
- add jsdoc comments