Set minSdkVersion + targetSdkVersion via build.gradle

Without this building with Gradle adds a 'maxSdkVersion' attribute to the manifest. This seems to cause the targetSdkVersion value being ignored. And with a targetSdkVersion value lower than 16 the permissions READ_CONTACTS/WRITE_CONTACTS imply READ_CALL_LOG/WRITE_CALL_LOG. But we don't need/want those permissions.

build.gradle

@@ -41,6 +41,11 @@ android {
     compileSdkVersion 19
     buildToolsVersion '20.0.0'
 
+    defaultConfig {
+        minSdkVersion 15
+        targetSdkVersion 17
+    }
+
     dexOptions {
         preDexLibraries = rootProject.ext.preDexLibs
     }