BS-10202 : update the distrib project from bonita tomcat6 to tomcat 7

- Change the version and name of the dependency org.apache.tomcat.catalina
force source and target compiler version to 1.6
BS-10239 : Merge project bonita-tomcat-valve from BS-10196_Bundles_upgrade to Master

- Merge remote-tracking branch 'origin/BS-10196_Bundles_upgrade'