[Koha] New OPAC CSS suggestion

Hi all, At the Marseille Hackfest this year Owen and I discussed modernising the look of the Koha OPAC. I have written a patch with a suggestion for updated styling, which can be found on bug 20554 https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=20554. Functionality of the OPAC has not been changed, just the styling. I have added some screenshots to the bug. Any feedback is welcome, as is testing ;) (A note for those wanting to test, once the patches have been applied you will need to compile the Sass files, see https://wiki.koha-community.org/wiki/Working_with_SCSS_in_the_OPAC_and_staff... ) And massive thanks to Owen for the help with patch-submission and rebasing J Cheers, Claire