Adding .gitignore

Change-Id: Ic36ff18c3ca5668086a94031fc9c83e2212e1bde
diff --git a/.gitignore b/.gitignore
index a619a9f..16fde1b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,19 @@
 /.jiri
-/bin
-/creds
-/node_modules
-/public/bundle.*
-/tmp
+
+# Gradle dirs
+build/
+/buildSrc/schema
+.gradle/
+local.properties
+
+# IntelliJ
+.idea/
+**/*.iml
+
+# Eclipse
+.settings/
+.metadata/
+.recommenders/
+
+# Generated source
+generated-src/