Tagging as v4.0.1

Tagging as v4.0.0

3.1.0

3.0.0

2.0.4

2.0.2

Merge pull request naoufal#6 from naoufal/feature/add-reason

Feature/add reason

Fix react-native dependency

Merge pull request naoufal#1 from naoufal/feature/promisify-authenticate

promisify authenticate method and add TouchIDErrors