Go up button should actually have a valid ID destination

Signed-off-by: Suki <suki@missallsunday.com>
Merge pull request #1117 from MissAllSunday/ssi_css

Go up button should actually have a valid ID destination
Merge pull request #1118 from Arantor/release-2.1

Board index changes
Merge pull request #1119 from Arantor/release-2.1

! When resizing images to JPEG (i.e. thumbnails), allow for variable com...