Log start/stop of alppaca by default
Log start/stop of alppaca by default

Previously, nothing would be logged because
- log level is WARN by default and everything that
  happens on startup is logged with INFO
- the way SIGTERM is handled prevented the "finally:" from being entered

ImmobilienScout24/alppaca,ImmobilienScout24/afp-alppaca,ImmobilienScout24/afp-alppaca,ImmobilienScout24/alppaca