Bug 16900 - Hold suspend button incorrectly styled in patron holds list

Bug 16900 - Hold suspend button incorrectly styled in patron holds list

This patch updates the style of the suspend/resume button in the list of
holds displayed on the checkout page and on the patron detail page. The
button is now a Bootstrap-styled button with a Font Awesome icon.

To test, apply the patch and locate a patron who has holds.

- On the checkout page, view the 'Holds' tab and confirm that there is a
  correctly-styled 'Suspend' button for each hold.
- Verify that the button works correctly and looks correct when a hold
  has been suspended.

Signed-off-by: Arslan Farooq <arslanone@gmail.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
(cherry picked from commit 6c711e6cda36ab339fc52d63ec1fd99d1f39fe99)
Signed-off-by: Frédéric Demians <f.demians@tamil.fr>