Progress indicator when building chunks

[ray10k]

When I first started the app, I thought it was stuck on something since it didn't show any images; just a pulsing hot pink square on a grey field. Turns out that the ImgServer was generating chunks.

Since it's not immediately obvious that something is happening unless you pull up the status window, maybe the system could show a throbber while it's working on things? Would make it look less like it's broken or something.

[pronopython]

Very good idea! You mean the first run, right? Yes, the crawler takes its time to start up. I will look into this (make it start faster showing images OR show a message / spinning circle etc)