Remove isal to add back as subtree
Squashed 'contrib/isal/' content from commit 972418c

git-subtree-dir: contrib/isal
git-subtree-split: 972418c0613ad1c5cee056b80de8c4dcdf0d8e22
Merge commit '7e5a58cee07fee06fc3e7ef130a77a8a3f4de9ec' as 'contrib/isal'
Removing linenoise add back as subtree
Squashed 'contrib/linenoise/' content from commit cf1bdf5

git-subtree-dir: contrib/linenoise
git-subtree-split: cf1bdf5f89e10b504a0bec3efc8a8587eadecd2c
Merge commit 'cc702d1690ada1b6c9d63f263536e43b5d70fde4' as 'contrib/linenoise'
Removing contrib/v8 - adding from subtree
Squashed 'contrib/v8/' content from commit b9aa2de

git-subtree-dir: contrib/v8
git-subtree-split: b9aa2dee79424976d9ca57ec7c3789a47c0e1fce
Merge commit 'b871c25fa75fc76ae00a7a359a078717a5d55e01' as 'contrib/v8'
-j4 should predate other options