Improved output and error handling

Option to detect errors can be done based on output check with configurable pattern.
Option to send output to the job logger

Solved a problem with overwriting environment variables

Overwriting environment variable caused an exception - solved

Solved Problems under Linux and short running processes

If a process were running fast than 10ms the end of the process was not detected.
Now this state handling is fixed.
Tests are now done for Unix and Windows.
Build process runs also under Unix now.
Set option output to console was always on - fixed