Minegauler

- Fix crash when hitting single pixel space at the bottom of the minefield
- Fix crash when creating board with too many mines and reducing per-cell
- Set elapsed time to zero when completing board in one click
- Add license file and other project infra

- Prevent it being possible to change drag select mid-game (for the sake of highscores)
- Make safe start apply on an unstarted game without needing to create a new game
- Add code for the bot on the remote server
- Add code for converting legacy highscores

- Upload highscores to remote server
- Only when there is an internet connection, not queued for later
- View highscores e.g. at URL http://minegauler.lewisgaul.co.uk/highscores?per_cell=3&name=Siwel%20G&drag_select=1

- Fix scrollbars always appearing

- Option to get current game information, including predicted completion time for lost game

- Allow reducing the size of the window which introduces scrollbars to the board