Squashed 'static/js/grid/' changes from cfdb6ca..b7d09e7
Squashed 'static/js/grid/' changes from cfdb6ca..b7d09e7

b7d09e7 Merge branch 'master' into subtreeable
6c9800a Improve data check

git-subtree-dir: static/js/grid
git-subtree-split: b7d09e71b5000a756bc105e9701793db36080289

matco/webwatcher,matco/webwatcher,matco/webwatcher