This module contains the EventLoop type, which is the constellationβs
view of a script thread. When an EventLoop is dropped, an ExitScriptThread
message is sent to the script thread, asking it to shut down.
The constellation uses logging to perform crash reporting.
The constellation receives all warn!, error! and panic! messages,
and generates a crash report when it receives a panic.
The Constellation itself. In the servo browser, there is one
constellation, which maintains all of the browser global data.
In embedded applications, there may be more than one constellation,
which are independent of each other.