~0.1 second mocked test speedup by lowering poll interval when mocked, or put otherwise: 10% :)
Test cleanup -
  - Added config.py
    - avoid duplicated directory names
  - Fixed permission problems when running tests from commandline and from Jenkins flow jobs
  - Cleanup of flow graph output dirs
    - commandline run -> /tmp/jenkinsflow...
    - Jenkins run -> flow job workspace
  - test.py calls tmp_install.sh to install jenkinsflow in /tmp/jenkinsflow...
    - warning if installation fails