- 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