Ignore node_modules in Maven and Gradle.

Change-Id: I7190cdddf4c3215caffb61fe441a0ff2329919cf
diff --git a/build.gradle b/build.gradle
index 7f9b905..4a27788 100644
--- a/build.gradle
+++ b/build.gradle
@@ -105,4 +105,8 @@
   doLast {}
 }
 
+processResources {
+    exclude("META-INF/resources/node_modules/**/*")
+}
+
 build.dependsOn compileWeb