14370
-----
Issue 5290: Cleanup Startup Error Handling
http://code.google.com/p/pharo/issues/detail?id=5290
Camillo Bruni.- provide a more readable log output on stdout - properly handle the -interactive -headless switch - reuse existing code when using scripts (CodeLoader) - cleanup the logging in SmalltalkImage - added exit code -- Marcus Denker -- http://marcusdenker.de
