Squashed 'app/assets/javascripts/TortoiseJS/' content from commit 2a003d2

git-subtree-dir: app/assets/javascripts/TortoiseJS
git-subtree-split: 2a003d229219cc4eb7164d346b9ac6e8e89596de
Merge commit '324b1ad2044779f3f236177e89049e3bebf888dd' as 'app/assets/javascripts/TortoiseJS'
Remove models library submodule in order to make it a subtree.
Squashed 'public/modelslib/' content from commit d49b327

git-subtree-dir: public/modelslib
git-subtree-split: d49b32744d7470e233d4f1f6a23f2cb70cd29c21
Merge commit '2a68bab09eb0713802f4ec1b769879a1b74159d3' as 'public/modelslib'
Add link to TortoiseJS readme