Symlink Android code style to app-toolkit project.

Test: open studio and it now has the right style
Change-Id: I26a2b9c2c13e8c9075a601db8c8f7744fcf7ffc3
diff --git a/.gitignore b/.gitignore
index abfef7c..162af55 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,7 +1,8 @@
 .classpath
 .gradle
-.idea/
-!.idea/codeStyleSettings.xml
+**/.idea/**
+!**/.idea/codeStyleSettings.xml
+!**/.idea/copyright
 !.idea/copyright/AndroidCopyright.xml
 !.idea/copyright/profiles_settings.xml
 !.idea/vcs.xml