Del: --prefix=modules/dev/elements, in order to move to modules/common/elements.
Squashed 'modules/common/elements/' content from commit 7a00791

git-subtree-dir: modules/common/elements
git-subtree-split: 7a0079126dd4901f25d2cccec27e0b6d2928fb0a
Merge commit '9c3122fa4225bb8b253e095d2745ecd9ad85e9df' as 'modules/common/elements'