\Util to \utilphp\util

Signed-off-by: Gawain Lynch <gawain.lynch@gmail.com>
Add missing image parameter to attributes() macro
Handle HTTP 403 errors separately to 404
Replace \utilphp\util::get_var() as it doesn't exist.
Merge pull request #1449 from GawainLynch/hotfix/utilphp

\Util to \utilphp\util
Merge pull request #1450 from GawainLynch/hotfix/editcontent_image

Add missing image parameter to attributes() macro
Merge pull request #1451 from GawainLynch/feature/Handle_HTTP_403

Handle HTTP 403 errors separately to 404
Merge pull request #1452 from GawainLynch/hotfix/Authenticate_login_provider

Replace \utilphp\util::get_var() as it doesn't exist.
Manually applying fix by @rarila.
Manually applying patch by Rarila.
Tweaking CSS for the backend.
Fixing the margins of the "showing 1 - 10 of" thingy..
Making heading on dashboard consistent with other pages.
Tweaking CSS.
Merge remote-tracking branch 'upstream/master'