Integration base test improvements

- add possibility of forcing a build with a change
- fix issue with forcing a build that triggers other builds
- add printBuild method for debugging in console
make test work regardless of the environment of the tester

Signed-off-by: Pierre Tardy <pierre.tardy@intel.com>
review comments fix

Signed-off-by: Pierre Tardy <pierre.tardy@intel.com>
Merge pull request #1471 from tardyp/integration

Integration base test improvements