Refactored test output folder name

[mrizzi]

Based on @agoncal's report about rules tests execution:

Sometimes when you run tests matching a short word (eg. mvn clean test -DrunTestsMatching=web) you end up with several reports under target . Then, to find the appropriate one is quite difficult, You need to browse through all of them. When you open the report, most of the reports are named data, but not all of them.

which is reflected in the next screenshot

with the changes in this PR, the same tests execution will create this folders structure:

[mrizzi]

This is all about tests and the changes are all and just to code for testing.
Since tests are fine, I'm going to merge it.