Update gradle and gitignore

/build

# Built application files

*.apk

*.ap_

# Files for the ART/Dalvik VM

*.dex

# Java class files

*.class

# Generated files

bin/

gen/

out/

# Gradle files

.gradle/

build/

# Local configuration file (sdk path, etc)

local.properties

# Proguard folder generated by Eclipse

proguard/

# Log Files

*.log

# Android Studio Navigation editor temp files

.navigation/

# Android Studio captures folder

captures/

# Intellij

*.iml

.idea/workspace.xml

.idea/tasks.xml

.idea/gradle.xml

.idea/dictionaries

.idea/libraries

# Keystore files

*.jks

# External native build folder generated in Android Studio 2.2 and later

.externalNativeBuild

# Google Services (e.g. APIs or Firebase)

google-services.json

# Freeline

freeline.py

freeline/

freeline_project_description.json

apply plugin: 'com.android.library'

buildscript {

    repositories {

        mavenCentral()

    }

    dependencies {

        classpath 'com.android.tools.build:gradle:2.3.3'

    }

}

apply plugin: 'com.android.application'

android {

android {

    compileSdkVersion 25

    compileSdkVersion 25

    }

    }

}

}

dependencies {

dependencies {

    compile 'com.android.support:support-v4:25.3.1'

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

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

    compile 'com.android.support:support-v4:25.3.1'

    compile 'com.android.support:appcompat-v7:25.3.1'

}

}

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