Make voltdb build on xcode 5.1 which uses clang3.4.
Fix weird bug I introduced in TableIterator.
Make a fix that was mac only actually clang only
Merge pull request #1183 from VoltDB/clang3.4compat

Clang 3.4 compatibility changes
ENG-5690: Temporary fix for junit deadlocks related to the shutdown
hooks.
Fix (hopefully) broken mac builds on older clang (<3.4)
ENG-5888: See if client has CV which CL will have.
Merge pull request #1188 from VoltDB/ENG-5888

ENG-5888: See if client has CV which CL will have.
clean up all the column info related sloppy code
Merge branch 'master' of github.com:VoltDB/voltdb into innovation-xin-perf-steps