Add stackable button bar style
am: 2fc8069372

Change-Id: I322b71441f1eee6cd33e4e43262a0c1445eff790
tree: 8cc9e8a4d701098e0861b13582870c6630a1918f
  1. library/
  2. navigationbar/
  3. tools/
  4. .gitignore
  5. PREUPLOAD.cfg