add functions to validate script output (issue 1314)
change the dir path in fetchneedles
Merge pull request #131 from os-autoinst/coolo_1314

add functions to validate script output (issue 1314)
Merge pull request #133 from nilxam/fix_fetchneedles

change the dir path in fetchneedles
get the callers in fctlog

- Add more fctlog calls in testapi - as main entry point for tests
- check backtrace in fctlog for the line number
- print this information in the log file for now, possibly interesting
  in live view once we agree on a way to get it there

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