Readme remains same as the master (https://github.com/championswimmer/Android-SocialButtons). I have added a new button which shows a mail icon. i had to create it to make user login via his username and passowrd.
if some one needs this version u can add to ur gradle using compile 'com.github.rakesh1988:Android-SocialButtons:1.1'