delete sbt role
Squashed 'roles/sbt/' content from commit 0676cfe

git-subtree-dir: roles/sbt
git-subtree-split: 0676cfefb0f95f52f1efb0b4ef4d7cc0395524a8
Merge commit 'fcf32ff9f0c0e9e0943b207288a5a78254f833f1' as 'roles/sbt'
removed sbt
Squashed 'roles/sbt/' content from commit 0676cfe

git-subtree-dir: roles/sbt
git-subtree-split: 0676cfefb0f95f52f1efb0b4ef4d7cc0395524a8
Merge commit 'ac8163e802cd8d660ee9b127cc4df9576eb60d39' as 'roles/sbt'
added .gittrees