Show entire title of issues (like Trello)

When you get to around 7 columns, you can no longer have very long issue titles because you can only see 1 or 2 words. This fixes that so that now you get something like this.

![Issues](http://screencloud.net/img/screenshots/bbd07b34a08b240471812cd0b6bd4592.png)

The entire board still looks great, I just can't screenshot it since it's private :smile: 

<!---
@huboard:{"order":26.0}
-->