Merge branch 'master' into develop
Changing some sounds around.

This commit also includes sounds for a magic gem clear,
which isn't implemented just yet.
Scoring and scoring-noises changes.
Changing window size to 640x480 for now.

Some debug output was also removed.
Changing the way scoring works. You can chain between pieces now!
Adding more combo clear colors. Rainbow!
Changing the way scoring works and adding some extra GameStates
Added level ups and gravity.
Merge branch 'develop'
Making gravity-drop smooth!
Adding rudimentary "game over" state. wow, you lose.
Pieces will no longer jump downwards when moved off a column.

Fixes #4
Screen states now supported. Added basic title screen + pause function.

Closes #3.
Removing extra whitespaces at the end of lines.
Release version r4.
Adding Block class, and actual graphics! Wowzers.
Adding block animations + changing clears to use them.
Seed the randomizer at game start (rip old sequence of pieces)
Show version number on title screen
Removing some old junk