Bug 20741: Update two-column templates with Bootstrap grid: Administration part 5

Bug 20741: Update two-column templates with Bootstrap grid: Administration part 5

This patch modifies several administration templates to use the
Bootstrap grid instead of YUI.

This patch also removes obsolete "text/javascript" attributes from
<script> tags in the modified templates.

To test, apply the patch and view the following pages, confirming that
they look correct at various browser widths:

 - Administration -> Keywords to MARC mapping
 - Administration -> Item circulation alerts
 - Administration -> Item types
   - View and edit item types
   - Edit and item type and translate a description
 - Administration -> Koha to MARC mapping
 - Administration -> MARC frameworks -> MARC structure
   - View and edit tags

Signed-off-by: Claire Gravely <claire.gravely@bsz-bw.de>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>