- Previously, spaces were collapsed in the HTML rendering of the MARC record, which could obscure the meaning of fixed-position fields like the LEADER, 006, 007 and 008.
- This commit adds new CSS rules and classes to allow greater control over display of MARC fields.
- Resolves VUFIND-1170.

- Provides a more granular mechanism than the availability boolean for conveying status information for the summary view.
- Currently supported by DAIA and Demo drivers.

- Some CSS adjustments to jquerymobile to match.

- 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

Removed incomplete/outdated cart logic -- these are old relics of an early implementation of the cart; if we want mobile cart support, we should reimplement based on the current blueprint theme.

Set up links to collection view rather than record view for appropriate records when collections are enabled.

Moved themes from /themes/vufind/ to just /themes/ -- this simplifies file paths and fixes a bug in install.php that generated an invalid Apache configuration.  This increases the risk of conflict with themes from a different module, but using VuFind in combination with other theme-using modules is going to require extra customization anyway; not worth complicating the common use case.