Rename to Chance

Related: #2 (closed)

The name "Roll-It" isn't great, and also doesn't follow along with GNOME's App Naming guidelines. I'm also not very good at naming, so I'm open to suggestions.

Some ideas I've had, but most are already in use by others:

• Roller (could be confused with File Roller, Dice Roller is also taken)
• Dice
• Random
• Roll (still close to Roll-It, different enough from Roller?)

Suggested by others:

• Gamble (suggested by Brage Fuglseth)
• Dicebag
• Dice Tray
• Pips