Fixed a couple of lint issues

example/build.gradle

@@ -2,7 +2,7 @@ apply plugin: 'android'
 
 android {
     compileSdkVersion 19
-    buildToolsVersion '19.0.0'
+    buildToolsVersion '19.0.3'
 
     defaultConfig {
         minSdkVersion 9

lib/build.gradle

@@ -2,7 +2,7 @@ apply plugin: 'android-library'
 
 android {
     compileSdkVersion 19
-    buildToolsVersion '19.0.0'
+    buildToolsVersion '19.0.3'
 
     defaultConfig {
         minSdkVersion 9

lib/src/main/AndroidManifest.xml

@@ -1,6 +1,7 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.soundcloud.android.crop">
 
-    <application />
+    <application
+        android:allowBackup="true" />
 
 </manifest>

lib/src/main/res/values/strings.xml

@@ -1,10 +1,10 @@
-<resources>
+<resources xmlns:tools="http://schemas.android.com/tools">
 
     <string name="saving">Saving picture…</string>
     <string name="wait">Please wait…</string>
     <string name="error_pick_image">No image sources available</string>
 
     <string name="done">DONE</string>
-    <string name="cancel">CANCEL</string>
+    <string name="cancel" tools:ignore="ButtonCase">CANCEL</string>
 
 </resources>