Fix `.close img` looking off-center.
Issue #3976: Send a profile update alongside a sharing notification

Issue #3976: Send a profile update alongside a sharing notification
Add multiphoto for mobile post
Merge pull request #4074 from L3MNcakes/feature/3975-send-profile-update

Issue #3976: Send a profile update alongside a sharing notification
Merge pull request #4067 from movilla/multiphoto

Add multiphoto for mobile post. Close #4053
Merge pull request #3841 from tubbo/fix-close-buttons

Align close button images

Sorry this took so long to merge in guys, I had this weird feeling that I had already done so. Looks like the 'X' button is coming after the custom popover HTML so this looks OK to merge in.
Update changelog. Apologize for idiocy.