Don't overflow stdout in travis test
Add two more screensaver tests
Let client know the pattern of suspect tiles
Let client describe tiles as recently searched
Document hidden tiles policy
Rename boolean identifiers
Make OverloadedStrings a default extension
Record the time of current game session start in the server state
Add a debug option to exit the game session after a given time

This is needed for hpc, because it needs a clean exit to save data files.
Test animations in testDefense
Add comments into assertion failures
Add comments into assertion blames
Refactor level generation