Add .gitignore to Gallery2

Change-Id: I071eb063f3cb26ee42134462958f49342ec54cd9
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..8da36db
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,11 @@
+# Project files and paths.
+.classpath
+.project
+*.iml
+**/*.iml
+.settings/
+bin/
+libs/
+gen/
+.idea/
+project.properties