Add margin to thumbnails for proper spacing. Address 9873 and fix 9774.

BS3 commits 7796e645c98fe527261d85ad2fec01720e3fe455,
4d23aa4ef50ac16fec9fbc12832ad99f362ac703
Add margin to thumbnails for proper spacing.

BS3 commit 7796e645c98fe527261d85ad2fec01720e3fe455
Fixes 10137: correct classes on thumbnails. Address 9873 and fix 9774

BS3 commits dd9980e8c94eed0af65fbc60129aa315f24d13a4,
4d23aa4ef50ac16fec9fbc12832ad99f362ac703
Improve upon #9937: Link and put reset column stuff to action in the grid example

BS3 commit 4ad2ecf9757ba45fe41a05fb28a84e7dab5dc39f
Address 9873 and fix 9774

BS3 commit 4d23aa4ef50ac16fec9fbc12832ad99f362ac703