Changed Begin game to begin new game
Nightly changes

Altereted difficulties via multipliers
Changed to game layout
- Scores, multipliers and timers are in boxes
- Game modes displayed at top of game grid
- Multiplier updated correctly ong ame start
Nightly Changes

Game header
Disabled caching of page content
Merge pull request #8 from tommykent1210/nightly

Changes to layout, fixed multipliers