The footer tag does not need a role.

The header tag does not need a role attribute.

This will prevent VuFind from generating an empty h4 tag.

- See https://github.com/googlei18n/libphonenumber for details

- Resolves VUFIND-217 by adding delete capabilities
- Changes the way tags are counted -- now counted per-user, rather than per-copy, for more accurate ranking
- Includes some stylistic improvements to the LESS code

Bootstrap3 cart confirms and close fixes. The permenant close fix is temporary until jsobjects is implemented in 2.4.

Removed .row around main content from layout and put it only in the views that have multiple columns.