Revert "manifest: Remove gnome-calculator for now"
Revert "manifest: Remove gnome-calculator for now"

This reverts commit fa9179b34fe58fd16d4d48906ca3a7f26203eaa4.

https://bugzilla.gnome.org/show_bug.cgi?id=738896

vrutkovs/vrutkovs.github.io,vrutkovs/vrutkovs.github.io,chergert/gnome-continuous,chergert/gnome-continuous,vrutkovs/vrutkovs.github.io,chergert/gnome-continuous