Squashed 'app/' changes from 63eefe7..a891824

a891824 corrected a stylesheet link tag

git-subtree-dir: app
git-subtree-split: a891824f42e4c540115709f3fb13f68fd1b40ab8
Merge commit 'cc04c5080669e2dcfc9d4901ec1a6618f6216e0c'