Add Twitter's Fabric library

Author: mythz

src/AndroidClient/androidchat/build.gradle

@@ -1,5 +1,24 @@
+buildscript {
+    repositories {
+        maven { url 'https://maven.fabric.io/public' }
+    }
+
+    dependencies {
+        // These docs use an open ended version so that our plugin
+        // can be updated quickly in response to Android tooling updates
+
+        // We recommend changing it to the latest version from our changelog:
+        // https://docs.fabric.io/android/changelog.html#fabric-gradle-plugin
+        classpath 'io.fabric.tools:gradle:1.+'
+    }
+}
+
 apply plugin: 'com.android.application'
+apply plugin: 'io.fabric'
 
+repositories {
+    maven { url 'https://maven.fabric.io/public' }
+}
 android {
     compileSdkVersion 25
     buildToolsVersion "25.0.2"
@@ -38,4 +57,7 @@ dependencies {
     compile 'com.android.support:design:25.1.1'
     testCompile 'junit:junit:4.12'
     compile 'net.servicestack:android:1.0.27'
+    compile('com.twitter.sdk.android:twitter:2.3.1@aar') {
+        transitive = true;
+    }
 }

src/AndroidClient/androidchat/src/main/AndroidManifest.xml

@@ -2,7 +2,10 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="servicestack.net.androidchat">
 
+    <uses-permission android:name="android.permission.INTERNET" />
+
     <application
+        android:name=".App"
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
@@ -20,6 +23,12 @@
         <activity android:name=".MainActivity">
 
         </activity>
+
+        <meta-data
+            android:name="io.fabric.ApiKey"
+            android:value="b2d318d908fceea66ab422d2d31907d9444b01cc"
+            />
+
     </application>
 
 </manifest>

src/AndroidClient/androidchat/src/main/res/layout/login.xml

@@ -20,6 +20,7 @@
         android:layout_height="fill_parent"
         android:layout_marginBottom="200dp"
         android:gravity="center">
+
         <LinearLayout
             android:orientation="vertical"
             android:layout_width="wrap_content"
@@ -38,7 +39,9 @@
                 android:text="Twitter"
                 android:gravity="center"
                 android:textAppearance="@style/TextAppearance.AppCompat.Body1" />
+
         </LinearLayout>
+
         <LinearLayout
             android:orientation="vertical"
             android:layout_width="wrap_content"
@@ -58,6 +61,7 @@
                 android:gravity="center"
                 android:textAppearance="@style/TextAppearance.AppCompat.Body1" />
         </LinearLayout>
+
     </LinearLayout>
     <ProgressBar
         android:id="@+id/progressBar"