Bug 10017: Follow up handling with the multi libraries pref active

Bug 10017: Follow up handling with the multi libraries pref active

This Follow up patch will handle multi libraries pref
when it sets to "add" and enhance the way lists drop down menu appear

 Test plan for all patches ( the first one and  all follow ups )  :
 1- apply the patches ( from the first one and all follow up patches)
 2- use 3.10 po files and update it (for the master) "
    ../misc/translate/ perl translate update ar-Arab "
 3- install Arabic from the updated po files
    "perl translate install ar-Arab "
 4- set opac opacthemes pref to ccsr
 5- set OpacAddMastheadLibraryPulldown pref to add
 6- select the Arabic from the opaclanguages pref
 7- set opaclanguagesdisplay  to allow
 8- go to the opac and choose  arabic
 9- you will see all the directions from right to left
    (as you look at koha on a mirror ;) ))

Signed-off-by: Bernardo Gonzalez Kriegel <bgkriegel@gmail.com>
Comment: Work as decribed. No errors.
With all patches applied, we get a pretty RTL interface.
Well done!

Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
Changes are mostly CSS, one new image and a tiny template change.
Used po files from 3.8 for testing. Looks good!
Signed-off-by: Jared Camins-Esakov <jcamins@cpbibliography.com>
(cherry picked from commit 11820f3c17244a6b6d262bde30d4941d87f9fa5a)

Signed-off-by: Jared Camins-Esakov <jcamins@cpbibliography.com>