removing core?
Squashed 'core/' content from commit c82c912

git-subtree-dir: core
git-subtree-split: c82c912970f0025937938a3d30ea3b71e59bce52
Merge commit '2d39c7f1acaa4f0c3f93063e9e2a85ffb33a0b0d' as 'core'