build: updates, use gradle wrapper with docs

Change-Id: Idc73c4fcd7c6a7a645458276066667c2ac80c371
diff --git a/ring-android/app/build.gradle b/ring-android/app/build.gradle
index 0327413..7d3f154 100644
--- a/ring-android/app/build.gradle
+++ b/ring-android/app/build.gradle
@@ -11,7 +11,6 @@
         versionCode 200
         versionName "20191115-01"
     }
-
     sourceSets {
         main {
             aidl.srcDirs = ['src/main/java']
@@ -19,6 +18,7 @@
             jni.srcDirs = []
         }
     }
+
     buildTypes {
         debug {
             minifyEnabled true
@@ -69,20 +69,20 @@
 dependencies {
     def android_support_core_version = '1.1.0'
     def android_support_version = '1.0.0'
-    def material_version = '1.1.0-beta01'
+    def material_version = '1.1.0-beta02'
     def butterknife_version = '10.2.0'
     def dagger_version = '2.24'
 
     implementation fileTree(include: '*.jar', dir: 'libs')
     implementation project(':libringclient')
 
-    implementation "androidx.core:core:1.2.0-beta01"
+    implementation "androidx.core:core:1.2.0-beta02"
     implementation "androidx.appcompat:appcompat:$android_support_core_version"
     implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
     implementation "androidx.legacy:legacy-support-core-utils:$android_support_version"
     implementation "androidx.cardview:cardview:$android_support_version"
     implementation "androidx.preference:preference:$android_support_core_version"
-    implementation "androidx.recyclerview:recyclerview:1.1.0-beta05"
+    implementation "androidx.recyclerview:recyclerview:1.1.0-rc01"
     implementation "androidx.leanback:leanback:1.1.0-alpha02"
     implementation "androidx.leanback:leanback-preference:1.1.0-alpha02"
     implementation "androidx.media:media:$android_support_core_version"
@@ -115,7 +115,7 @@
 
     implementation 'com.jsibbold:zoomage:1.2.0'
 
-    withFirebaseImplementation('com.google.firebase:firebase-messaging:20.0.0') {
+    withFirebaseImplementation('com.google.firebase:firebase-messaging:20.0.1') {
         exclude group: 'com.google.firebase', module: 'firebase-core'
         exclude group: 'com.google.firebase', module: 'firebase-analytics'
         exclude group: 'com.google.firebase', module: 'firebase-measurement-connector'