fix up display.template.php for useronline image and missing pm image/link

Signed-off-by: Illori <illori@simplemachines.org>
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Signed-off-by: Antes <antes@simplemachines.org>
Merge pull request #759 from illori/display.template.php_changes

fix up display.template.php for useronline image and missing pm image/li...
Merge pull request #760 from Antes/lang-cleanup

Language Cleanup
Merge pull request #762 from Arantor/release-2.1

! Draft autosaving should not just assume the checkboxes exist because s...