Burder v0.1.1 - First patch is out

Here comes the first patch for the Burder demo!

After having received some feedback, this patch includes:

• Various polish: updated GUI icons, Grocery Store (exterior) redesign, ...
• More sound effects: footsteps & scooter sound ; GUI / phone menu sounds ; and a few more
• New feature on Cheeep app: introducing the Dog Mode! A variant of the default Bird mode as well as an anti-softlock solution 
• Points of interest on the map! You'll know where to go next
• Bugfixes