Bug 22764: More YUI grid cleanup

Bug 22764: More YUI grid cleanup

This patch cleans up a few places where templates still contain YUI grid
markup. Some other minor markup problems are also fixed.

 - additional-fields.tt:
   - Converts YUI grid to Bootstrap
   - Replaces obsolete <tt> tag with styled <span>
   - Adds _() function to string in embedded JavaScript

 - detail.tt:
   - Fixes some stray YUI grid classes
   - Fixes corresponding JavaScript to enable page adjustments

 - moredetail.tt:
   - Removes unnecessary YUI grid markup

To test, apply the patch and view the affected pages, confirming that
everything looks correct and that the page adjusts well to various
browser widthds.

When testing the bibliographic detail page, enable AmazonCoverImages and
view a record with and without an Amazon cover image. The layout should
work in both cases.

Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>