Merge branch 'remove-index-create-drop-jmx' into online-multi-txn
Pull rebind(hkey,deep) out of Cursor hierarchy, implement in GroupScan_Default.
Pull {write,delete}IndexRow up to Store interface
Implement periodicCommit for Persistit and return true if commit happened
Move guts of createIndex/alterTable to OnlineHelper and use periodicCommit.