Crash fixes. New bulb icons.

Some users were getting crashes on start from some calls to bulb.get_[color/power/label](). Calls to these functions have been greatly reduced, which should prevent the network from being clogged and throwing the WorkflowException that's causing the crashing.

Also, a new icon is being developed for the bulb display at the bottom. The one right now is a placeholder, but I'm working with a member of the community to get better custom icons.

This release will be a pre-release for now, as the icons aren't finalized and the crash fix hasn't been widely tested yet.