Revert "Fix: tests again, put back old code, but I dont see the difference"

This reverts commit 86a0702459fb7daa40005e50f40e2a2fb92adbd3.
Revert "Rev: TEST fail back to installed version loading first because of modules tests. TODO: find a way so modules can be test without install the tool and so be error prone when framework developping and using quick_tests.sh. hint: PYTHONPATH var is not enough for solving this"

This reverts commit 25d653432534329cb153dac06f6fe5a6b5f246e0.
Revert "Fix: tests are now using the dev version by default, and if not available the installed one."

This reverts commit 8d64301015d396c1de1cf8e04236cb78fd1f13e3.