Updated packages, rewrote player = gapless playback, faster loading

just_audio/android/build.gradle

@@ -0,0 +1,48 @@
+group 'com.ryanheise.just_audio'
+version '1.0'
+
+buildscript {
+    repositories {
+        google()
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:3.6.3'
+    }
+}
+
+rootProject.allprojects {
+    repositories {
+        google()
+        jcenter()
+    }
+}
+
+apply plugin: 'com.android.library'
+
+android {
+    compileSdkVersion 28
+
+    defaultConfig {
+        minSdkVersion 16
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    lintOptions {
+        disable 'InvalidPackage'
+    }
+
+    compileOptions {
+        sourceCompatibility 1.8
+        targetCompatibility 1.8
+    }
+}
+
+dependencies {
+    implementation 'com.google.android.exoplayer:exoplayer-core:2.11.4'
+    implementation 'com.google.android.exoplayer:exoplayer-dash:2.11.4'
+    implementation 'com.google.android.exoplayer:exoplayer-hls:2.11.4'
+    implementation 'com.google.android.exoplayer:exoplayer-smoothstreaming:2.11.4'
+    compile files('libs/extension-flac.aar')
+}