Review

* added some tasks
* some minor code cleanup
PersoSimTest: test methods now only throw general Exception if at all
PersoSimTest: removed obsolete code, moved trim command to method
reading from std out
PerosSImTest: added/improved documentation, added missing test
PersoSimtest: removed command wrapping in executeUserCommands method
SocketSimulator: fixed return value for stop method
PerosSIm: unified handling of command list by cmd methods, unified
handling of command line and user initiated commands