Remove Mr for adding through subtree
Add Mr v0.12.0 as a subtree
Squashed 'packages/mr/' content from commit fb221b7

git-subtree-dir: packages/mr
git-subtree-split: fb221b7322e581ab63aa5a8bdbf8ae5579c6b06c
Remove unneeded files from Mr import
Squashed 'packages/mr/' changes from fb221b7..c829a59

176f547 0.12.2
635b920 Verify consistent case convention for modules.
63a3030 Support devDependencies
f09883e 0.12.1
69ada88 Check for .json extension on location, not id
cec9e17 Correct call to loadScript in browser require

git-subtree-dir: packages/mr
git-subtree-split: c829a596d4d05c109a33a1b82b9d965aa960f7ac
Update Mr to v0.12.2