Separated the prototype into plugin and test apps.

The plugin implementation has moved to the gradle/ directory,
and the test applications have moved under the testapps/
directory. This change means that you now have to run
./gradlew uploadArchives in the root directory to make the
plugin available to the test application builds via a
local repository (in repo/).

See the readme.md for more details about building and using
the test applications.

Change-Id: Id9b268aa1d6d1a5621513fb788b2dc90ca2793e8
diff --git a/testapps/multiproject/build.gradle b/testapps/multiproject/build.gradle
new file mode 100644
index 0000000..1b44974
--- /dev/null
+++ b/testapps/multiproject/build.gradle
@@ -0,0 +1,8 @@
+buildscript {
+    repositories {
+        maven { url '../../repo' }
+    }
+    dependencies {
+        classpath 'com.google.android:gradle-android:0.1-SNAPSHOT'
+    }
+}