Graphics::TransparentSurface::convertTo() errors out when the destination
format is not 2 or 4 Bpp. But in the case of the cloud icon we can recover
from it. So just print a warning and don't close the application.
CloudIcon is now a Request which is automatically added once first
Request is added to ConnMan. When icon decides it should disappear, it
gets FINISHED, so ConnMan would switch off the timer if it was the last
Request.
To achieve smoother animation, ConnectionManager's timer now is 20 times
more frequent.
I'm encountering some strange libcurl.dll segfault problem when I close
the application while some Requests are active. It's not
CloudIcon-related, so it's more likely related to this 20 FPS timer.
This problem shows up only in Visual Studio for me.
