Prepare plugin for ajusted Plugin logic
Remove core b/c of issues
Squashed 'core/' content from commit 3287ce3

git-subtree-dir: core
git-subtree-split: 3287ce3a6640565e15f10f1c34b8548bddf7f44e
Merge commit 'ace3cd63c7421b5ce1e6a0fef38153380a9ad053' as 'core'