Icons for various columns

Game status:

* Waiting: red clock
* Uploaded: green check mark
* Waiting (downloaded): yellow clock

Turn mode:

* Manual: red X
* After last player upload: people
* Timed only: yellow clock
* Fully automatic: people and clock

Time left:

* Zero: red clock
* Less than an hour: orange clock
* Less than a day: yellow clock
* A day or more: blue clock

These icons would appear to the left of the text in the column.