Copy implementation dependencies to $build/deps

Change-Id: I549cee2493341a6558a09e9604958c9a81ee186b
diff --git a/build.gradle b/build.gradle
index e469e03..977ebd7 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1902,6 +1902,7 @@
 
 task copyMavenDeps(type: Copy) {
     from configurations.compile into "$buildDir/deps"
+    from configurations.compileClasspath into "$buildDir/deps"
     from configurations.testCompile into "$buildDir/deps"
 }