v2.1.1

Patch release

In v2.1.0, two dependencies were introduced. One of witch requires the PHP extension bcmath. This lead to a complaining composer if you wanted to install v2.1.0 and do not have the PHP extension available.

Thanks to @jschreuder this came to our attention and we implemented the fix he suggested: Making the dependencies optional. This involves, that if you installed v2.1.0 already, and you are using the Phone or CreditCard rule, you now have to install the dependencies manually that are suggested by composer. If you do not use the Phone or CreditCard rule you don't need to take any action.

We are sorry for the inconvenience this might have caused, we did our best to resolve this as good as we were able to.