add native bullet build properties to gradle.properties in root project

gradle.properties

@@ -11,4 +11,9 @@ buildNativeProjects = true
 
 # Path to android NDK for building native libraries
 #ndkPath=/Users/normenhansen/Documents/Code-Import/android-ndk-r7
-ndkPath = D:/android/android-ndk-r8e
+ndkPath = D:/android/android-ndk-r8ed
+
+# Path for downloading native Bullet
+bulletUrl = http://bullet.googlecode.com/files/bullet-2.82-r2704.zip
+bulletFolder = bullet-2.82-r2704
+bulletZipFile = bullet.zip