SQL support for phandle verifier, etc. Changes to use phandle verifier from foundation to distinguish processes when pids are recycled. Remove some workarounds which attempted to use process creation timestamps to do the same thing. Also, use msg_mon_node_down2 to log the reason why the node is brought down. And removed some unneeded special case code to free the shared segment semaphore at the startup of mxssmp.
added support for externalized Sequence numbers. -- sql statements: create/drop/alter/get/showddl sequence for sequence objects -- function 'seqnum' to retrieve sequence numbers. An external spec has been created. Launchpad #1349985 Code reviewd by Joanie C, Suresh S, Selva and Sandhya. Full dev regressions run and passed.