This is a simple application that can read a coredump file and display
information regarding the crash, like the application's name and icon
and a backtrace. It will be launched by CrashDaemon whenever a new
coredump is available.
Also, it's mostly written in GML! :^)
Closes#400, but note that, unlike mentioned in that issue, this
implementation doesn't ignore applications that "have been started in
the terminal". That's just overcomplicating things, IMO. When my js(1)
REPL segfaults, I want to see a backtrace!
