Android-components: Logging fatal exceptions

[pocmo]

Since we stopped passing caught exceptions to the default exception handler of the system I no longer see the full stacktrace in the log.

Only when disabling the crash reporter I see them again:

We should consider logging the stacktrace ourselves if we do not pass the exception to the system anymore.

[pocmo]

CC @rocketsroger Noticed this in Fenix and it was quite annoying. :D

[rocketsroger]

Sure, I'll take a look.