Optional props, performance update

Props are now optional if the Manager do not require any props.

Object.assign is used instead of the spread operator due to performance.

Add code snippet

v.0.0.5

add small code snippet to readme

Add disclaimer

v.0.0.4

add disclaimer

Add typings to readme.

v.0.0.3

readme updates

Update readme

v.0.0.2

update readme

Update readme

v.0.0.11

update readme

Correct package fields

v.0.0.10

correct some package fields

Initial version

This is the initial version