Updated documentation, added sound effect for tile claims

Merge pull request #1 from Davidathatch/Card-Animations

Updated to change decorative images depending on the selected theme, along with changes to the way the current theme is stored in the state class.

Game over dialog entrance and exit animations functional

Tile flipping animation functional

Game no longer ends until each tile is claimed, even when a tie is inevitable

Merge remote-tracking branch 'origin/master'

All parts of game are functional, including graceful handling of an ended game.

All parts of game are functional, including graceful handling of an ended game.

Game is functional, awaiting appropriate functionality upon game ending

Options page created, working on graceful game start

Updated with working click events and functional svgs

Tile svgs updated with working gradients.

Everything running with js interop. Styling in process.

Issue with page not displaying fixed. Styling needing to be added.