feature 2916 Replace raphael with symbol fonts 
I added more icons than before (I think it's better as we can find links faster but that's arguable ...)

git-svn-id: http://piwigo.org/svn/trunk@23029 68402e56-0260-453c-a942-63ccdbb3a9ee
[trunk_admin] Update ru_RU, thanks to : Konve

git-svn-id: http://piwigo.org/svn/trunk@23031 68402e56-0260-453c-a942-63ccdbb3a9ee
[trunk_public] Update br_FR, thanks to : yves.kerleguer

git-svn-id: http://piwigo.org/svn/trunk@23047 68402e56-0260-453c-a942-63ccdbb3a9ee