- Bootstrap is proving to be a far more popular theme for DataTables -
this example comes from back in the day when jQuery UI theming was
first added, so it is no longer required.
- Have used :after for the information about what type of link it is -
this stops it from being included in a copy / paste which was annoying
- The postfix is a bit more informative than a letter about what
software it relates to
- With the move to the 1.10 API for all of the extensions, showing the
extension letter was redundent anyway
- Adding -button link type
- Improved the colours