Update for Android Studio 3.3
Summary:
Update gradle-plugin to v3.3.0
Update gradle 4.10.1-all
Update Butterknife to v10.0.0
Reviewers: KDE Connect, albertvaka
Reviewed By: KDE Connect, albertvaka
Subscribers: kdeconnect
Tags: KDE Connect
Differential Revision: https://phabricator.kde.org/D18264