lib/build.gradle

apply plugin: 'com.android.library'

android {

    compileSdkVersion 22
    buildToolsVersion "23.0.1"

    defaultConfig {

        minSdkVersion 19
        targetSdkVersion 22

        versionCode 1
        versionName "1.0"

    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
}

apply from: '../bintray.gradle'