Column wouldn't go down

[magnusviri]

On the right hand side I put a lot of 1x4's until it got 2 from the top. Whenever I got a row complete, that column never went down again. I'm attaching an image showing the right hand side. The left hand side was all the blocks piling up because I tried to make a movie to show it but lost the game before I could. A way to pause would be nice.

[erasmoh]

@magnusviri I fixed it on my PR https://github.com/ceolter/tetris/pull/2

Let's hope that @ceolter can review it and check if he likes it. Also added a pause functionality.