txnidselfcheck2 changes:
1) read the txnid not the prevtxnid from the current row
2) On a cnt error, print out the two non-consecutive cnt values
When the client detects a validation failure, report what it was doing
at the time.
Two more things:
1) Same prevtxnId issue in doWorkInProcAdhoc
2) rethrow the VoltAbortException in runOne so we still kill the
client.
Merge remote-tracking branch 'origin/master' into ENG-4195-oldcatalogs