fix upgrade.php for mysqli thanks emanuele for help

Signed-off-by: illori illori@simplemachines.org
New collapse and expand images, and css fixes for upshrink and My Messages, thanks to Arg

Signed-off-by: Bryan Deakin <runic@simplemachines.org>
update to css regarding previous commit

Signed-off-by: Bryan Deakin <runic@simplemachines.org>
Fixes small bug in previous update

Signed-off-by: Bryan Deakin <runic@simplemachines.org>
fixes linktree look aswell

Signed-off-by: Bryan Deakin <runic@simplemachines.org>
updated upshrink images

Signed-off-by: Bryan Deakin <runic@simplemachines.org>
Merge pull request #448 from illori/upgrade.php-fix

fix upgrade.php for mysqli thanks emanuele for help
Merge pull request #449 from smfrunic/release-2.1

New collapse and expand images, and css fixes for upshrink and My Messag...