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
Update Mr to v0.12.2
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
Cancel press if a drag is started
Run press-composer tests
Make buttons draggable

By not preventing default on pressStart. This was to prevent
scrolling of the webpage so that if the button is inside a
scroller it will scroll instead of the page. The preventDefault
has been replaced by preventing default on touchmove instead (if on
touch). On mouse this is not a problem.
Merge pull request #1096 from Stuk/press-dnd

Make press-composer/buttons work with native drag and drop
Merge pull request #1093 from Stuk/mr-subtree
Squashed 'packages/mr/' changes from c829a59..9fd3d8c


git-subtree-dir: packages/mr
git-subtree-split: 9fd3d8c76e3f1c3b1d1d1329ea086cfe9eaf466a
Update Mr to v0.12.4
Correct deserializer to init properly
Implementation of localizer