Partially revert "Remove repeat size"

This reverts commit 3ce764452dd67bace2319f3d49e592c4a38b3f81.

However, we are not going to include this in the app menu. It'll be a
hidden shortcut until we implement the final design.

Conflicts:
	src/gnome-mines.vala

https://bugzilla.gnome.org/show_bug.cgi?id=722450
Switch to new game button after winning the game

Otherwise there's no obvious way to start a new game after clicking
Close on the scores dialog
Do not show timer underneath the new game button
appdata: specify project_group
Reduce code duplication when changing button state
Add tooltips to both buttons
Updated Spanish translation
3.11.90
Updated Norwegian bokmål translation
Updated Brazilian Portuguese translation
Updated Czech translation
Updated Czech translation
Updated Lithuanian translation