- check/fix problems inside try/catch/finally block
    - loop ops: next,last,redo
    - fix @_ inside blocks

 - update stacktrace / caller ?

 - test usage in different module that it is used

 - rewrite documentation to English ;)
 - check TODOs in source-code

 - set ( %Carp::Internal /  %Carp::CarpInternal ) to skip try/catch blocks