vibrate 0.0.4

A Haptic Feedback plugin.

[0.0.4] - August 22nd, 2018

• add compatibility for Dart 2 sdk in pubspec.yaml

[0.0.3] - July 10th, 2018

• haptic Feedback for iOS and Android

[0.0.2] - January 26th, 2018

• added vibrateWithPauses(Iterable<Duration> pauses)

[0.0.1] - January 24th, 2018

• vibrate() and canVibrate() implemented on iOS and Android