Add log cursors. #1106
Merge branch 'develop' into log-cursor
Fix strings and unused variables. #1106
Fix warning. #1106
Ignore __wt_lsn in language interfaces. #1106
Fix set_value function. #1106
test/fix curlog_search. #1106
Merge branch 'develop' into log-cursor
Fix naming inconsistency.
Log cursors are explicitly readonly.
Fix function name in comment.
Add iterator config type to log cursors. #1106
Get compare and search working for log iterator cursors. #1106
Make copy of log record for all log records.  #1106.
Add ex_log.c example.  Don't spell-check key formats.  #1106
Fix return value warning.
Fix label warning.
Fix warning.
Minor cleanup.
Add a cursor operation to skip the in-order key check in a row-store,
configure it from LSM.

Explode the bulk cursor insert routines into a routine per btree type.

Reference #1127.