Bug 9648 - Replace YUI buttons on authorized values administration page with Bootstrap

Bug 9648 - Replace YUI buttons on authorized values administration page with Bootstrap

This patch converts the toolbar on the authorised values administration
page to to Bootstrap, replacing YUI button code with Bootstrap markup.

To test, view the authorised values administration page and confirm that
the "New authorized value..." and "New cateogry" buttons look correct
and works correctly.

Signed-off-by: Bernardo Gonzalez Kriegel <bgkriegel@gmail.com>
Comment: Both buttons works and look correctly. No errors.

Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
Works nicely, no problems found.
Signed-off-by: Jared Camins-Esakov <jcamins@cpbibliography.com>