Update tabular.html

Update the icon to work with bootstrap3
Merge pull request #97 from xwrogue3/master

Fix issue with tabular sortable
Merge pull request #96 from xwrogue3/patch-1

Update tabular.html
Twitter Bootstrap is now simply Bootstrap

See http://getbootstrap.com/about/#brand
Update README.md

Fixed src in screenshots
Merge pull request #98 from cvrebert/patch-1

Twitter Bootstrap is now simply Bootstrap