Refs Tokutek/ft-index#26 Change external api for *_multiple
Refs Tokutek/ft-index#26 Upgrade ftloader to new *_multiple api
Refs Tokutek/ft-index#26 Upgrade recovery to new *_multiple api
Refs Tokutek/ft-index#26 Upgrade hot indexing to new *_multiple api
Refs Tokutek/ft-index#26 Clean up toku_dbt_array_destroy
Refs Tokutek/ft-index#26 Initial implementation of new *_multiple API.
update is implemented as delete everything, insert everything (for now)