CLOG-113 update <parent> version and Clog version to 11-SNAPSHOT

Adrian--pointing this PR at Clog master but before you consider merging it, I recommend creating a clog sakai-10 branch first.  I've also updated the version from 0.9.5-SNAPSHOT to 11-SNAPSHOT.  This aligns Clog master with Sakai trunk version practices.  However, if you would rather have clog master versioned 1.0.0-SNAPSHOT I'll happily adjust the PR.