Make Drive IT jobs generic (not depending on a specific nuxeo-distribution version)

For no we rely on these URL's to download the Nuxeo distribution with the python tools/integration_tests_setup.py fetch-distrib --direct --url='...' command:

https://maven-eu.nuxeo.org/nexus/service/local/artifact/maven/redirect?r=public-snapshots&g=org.nuxeo.ecm.distribution&a=nuxeo-distribution-tomcat&v=5.8-SNAPSHOT&e=zip&c=nuxeo-cap

http://maven.in.nuxeo.com/nexus/service/local/artifact/maven/redirect?r=daily-snapshots&g=org.nuxeo.ecm.distribution&a=nuxeo-distribution-tomcat&v=5.6.0-HF25-SNAPSHOT&e=zip&c=nuxeo-cap

Therefore at each release (LTS/Fasttrack/HF) we need to change these job's configuration, see https://wiki.nuxeo.com/x/NQB1
We should find a generic way, by propagating the version as a parameter from the upstream job (probably parsed from the pom, otherwise as a simple job parameter) to the IT downstream jobs.