SVN_SILENT made messages (.desktop file)
Add restart option.
SVN_SILENT made messages (.desktop file)
Add a hint option.
Add an (empty) "Solve" action
solve() overwrites current board state from a template
A Picmi method to solve the game
Extract GUI and state bookkeeping on ending a game
Implement the Solve menu action

BUG: 318469
FIXED-IN: 4.11
Hints may also affect incorrectly marked cells

In addition to uncovering unmarked cells, now also correct incorrectly
marked cells.