[COCOON-2347] Jdk bump to 1.6 + various deps and plugins 'safe' upgrades + set parent version to 10-COCOON-2347-SNAPSHOT

git-svn-id: https://svn.apache.org/repos/asf/cocoon/branches/BRANCH_2_2_COCOON-2347@1710956 13f79535-47bb-0310-9956-ffa450edef68
11 files changed